Repository: knative/serving
Pull request #10084 (2020-11-11 06:20:36)

Delete old GC
<!-- Please include the 'why' behind your changes if no issue exists -->
## Proposed Changes

* Delete the old GC and Labeler
* Delete v1 GC config
* Remove LastPinned refresh from Route reconciliation
* LastPinned adn LastPinnedDebounce are deprecated, but still accepted for validation.

**Release Note**

<!-- Enter your extended release note in the below block. If the PR requires
additional action from users switching to the new release, include the string
"action required". If no release note is required, write "NONE". -->

```release-note
Remove the GC feature flag and v1 GC/Labeler
```


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pull-knative-serving-unit-tests | 881b57dc88f0ba00067952e99a5df766cec02f9d | [link](https://prow.knative.dev/view/gs/knative-prow/pr-logs/pull/knative_serving/10084/pull-knative-serving-unit-tests/1326424302727204864) | `/test pull-knative-serving-unit-tests`
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knative-prow-robot: @whaught: The following tests **failed**, say `/retest` to rerun all failed tests:

Test name | Commit | Details | Rerun command
--- | --- | --- | ---
pull-knative-serving-build-tests | 881b57dc88f0ba00067952e99a5df766cec02f9d | [link](https://prow.knative.dev/view/gs/knative-prow/pr-logs/pull/knative_serving/10084/pull-knative-serving-build-tests/1326424302706233344) | `/test pull-knative-serving-build-tests`
pull-knative-serving-unit-tests | 7c5595dfcea12692db421e0d5eae19244d202ee2 | [link](https://prow.knative.dev/view/gs/knative-prow/pr-logs/pull/knative_serving/10084/pull-knative-serving-unit-tests/1326428145942794240) | `/test pull-knative-serving-unit-tests`

[Full PR test history](https://gubernator.knative.dev/pr/knative_serving/10084). [Your PR dashboard](https://gubernator.knative.dev/pr/whaught).

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codecov[bot]: # [Codecov](https://codecov.io/gh/knative/serving/pull/10084?src=pr&el=h1) Report
> Merging [#10084](https://codecov.io/gh/knative/serving/pull/10084?src=pr&el=desc) (ec5256e) into [master](https://codecov.io/gh/knative/serving/commit/48784926262a71aa22fda19b953bcef1c9b7413c?el=desc) (4878492) will **decrease** coverage by `0.08%`.
> The diff coverage is `100.00%`.

[![Impacted file tree graph](https://codecov.io/gh/knative/serving/pull/10084/graphs/tree.svg?width=650&height=150&src=pr&token=MPpDfAj4Ui)](https://codecov.io/gh/knative/serving/pull/10084?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #10084      +/-   ##
==========================================
- Coverage   87.99%   87.91%   -0.09%     
==========================================
  Files         185      184       -1     
  Lines        8708     8564     -144     
==========================================
- Hits         7663     7529     -134     
+ Misses        795      791       -4     
+ Partials      250      244       -6     
```


| [Impacted Files](https://codecov.io/gh/knative/serving/pull/10084?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pkg/apis/config/features.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL2FwaXMvY29uZmlnL2ZlYXR1cmVzLmdv) | `93.33% <ø> (-0.42%)` | :arrow_down: |
| [pkg/reconciler/gc/config/store.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL3JlY29uY2lsZXIvZ2MvY29uZmlnL3N0b3JlLmdv) | `100.00% <ø> (ø)` | |
| [pkg/reconciler/gc/v2/gc.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL3JlY29uY2lsZXIvZ2MvdjIvZ2MuZ28=) | `97.05% <ø> (-0.09%)` | :arrow_down: |
| [pkg/reconciler/labeler/controller.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL3JlY29uY2lsZXIvbGFiZWxlci9jb250cm9sbGVyLmdv) | `100.00% <ø> (ø)` | |
| [pkg/reconciler/route/reconcile\_resources.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL3JlY29uY2lsZXIvcm91dGUvcmVjb25jaWxlX3Jlc291cmNlcy5nbw==) | `86.66% <ø> (+6.08%)` | :arrow_up: |
| [pkg/reconciler/route/route.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL3JlY29uY2lsZXIvcm91dGUvcm91dGUuZ28=) | `76.19% <ø> (+0.66%)` | :arrow_up: |
| [pkg/apis/serving/v1/revision\_helpers.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL2FwaXMvc2VydmluZy92MS9yZXZpc2lvbl9oZWxwZXJzLmdv) | `100.00% <100.00%> (ø)` | |
| [pkg/gc/config.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL2djL2NvbmZpZy5nbw==) | `95.83% <100.00%> (-4.17%)` | :arrow_down: |
| [pkg/reconciler/configuration/resources/revision.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL3JlY29uY2lsZXIvY29uZmlndXJhdGlvbi9yZXNvdXJjZXMvcmV2aXNpb24uZ28=) | `86.84% <100.00%> (-10.60%)` | :arrow_down: |
| [pkg/reconciler/gc/reconciler.go](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree#diff-cGtnL3JlY29uY2lsZXIvZ2MvcmVjb25jaWxlci5nbw==) | `100.00% <100.00%> (ø)` | |
| ... and [9 more](https://codecov.io/gh/knative/serving/pull/10084/diff?src=pr&el=tree-more) | |

------

[Continue to review full report at Codecov](https://codecov.io/gh/knative/serving/pull/10084?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/knative/serving/pull/10084?src=pr&el=footer). Last update [4878492...ec5256e](https://codecov.io/gh/knative/serving/pull/10084?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

whaught: /assign @dprotaso @mattmoor @vagababov 
whaught: > Maybe for the followup PR, but I I think v2GC -> GC change is in order.

We can flatten the v2 folders, but I didn't want to mess up the diffbase in this PR with moves (we'll do that next)

knative-prow-robot: @whaught: PR needs rebase.

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knative-prow-robot: [APPROVALNOTIFIER] This PR is **NOT APPROVED**

This pull-request has been approved by: *<a href="https://github.com/knative/serving/pull/10084#" title="Author self-approved">whaught</a>*
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<details open>
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- **[config/OWNERS](https://github.com/knative/serving/blob/master/config/OWNERS)**
- **[pkg/apis/OWNERS](https://github.com/knative/serving/blob/master/pkg/apis/OWNERS)**
- **[pkg/gc/OWNERS](https://github.com/knative/serving/blob/master/pkg/gc/OWNERS)**
- **[pkg/reconciler/OWNERS](https://github.com/knative/serving/blob/master/pkg/reconciler/OWNERS)**
- **[pkg/testing/OWNERS](https://github.com/knative/serving/blob/master/pkg/testing/OWNERS)**
- **[test/OWNERS](https://github.com/knative/serving/blob/master/test/OWNERS)**

Approvers can indicate their approval by writing `/approve` in a comment
Approvers can cancel approval by writing `/approve cancel` in a comment
</details>
<!-- META={"approvers":["dprotaso"]} -->
dprotaso: /lgtm
/approve

just needs a rebase
knative-prow-robot: @whaught: PR needs rebase.

<details>

Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md).  If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.
</details>
knative-prow-robot: [APPROVALNOTIFIER] This PR is **APPROVED**

This pull-request has been approved by: *<a href="https://github.com/knative/serving/pull/10084#issuecomment-728958041" title="Approved">dprotaso</a>*, *<a href="https://github.com/knative/serving/pull/10084#" title="Author self-approved">whaught</a>*

The full list of commands accepted by this bot can be found [here](https://go.k8s.io/bot-commands?repo=knative%2Fserving).

The pull request process is described [here](https://git.k8s.io/community/contributors/guide/owners.md#the-code-review-process)

<details >
Needs approval from an approver in each of these files:

- ~~[config/OWNERS](https://github.com/knative/serving/blob/master/config/OWNERS)~~ [dprotaso]
- ~~[pkg/apis/OWNERS](https://github.com/knative/serving/blob/master/pkg/apis/OWNERS)~~ [dprotaso]
- ~~[pkg/gc/OWNERS](https://github.com/knative/serving/blob/master/pkg/gc/OWNERS)~~ [dprotaso]
- ~~[pkg/reconciler/OWNERS](https://github.com/knative/serving/blob/master/pkg/reconciler/OWNERS)~~ [dprotaso]
- ~~[pkg/testing/OWNERS](https://github.com/knative/serving/blob/master/pkg/testing/OWNERS)~~ [dprotaso]
- ~~[test/OWNERS](https://github.com/knative/serving/blob/master/test/OWNERS)~~ [dprotaso]

Approvers can indicate their approval by writing `/approve` in a comment
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</details>
<!-- META={"approvers":[]} -->
knative-prow-robot: New changes are detected. LGTM label has been removed.

Patch:
diff --git a/.github/workflows/knative-style.yaml b/.github/workflows/knative-style.yaml
index ecf9cf6f0..56360215f 100644
--- a/.github/workflows/knative-style.yaml
+++ b/.github/workflows/knative-style.yaml
@@ -234,7 +234,7 @@ jobs:
               ch=$(echo $ent | cut -d':' -f3-);
               err="Unknown printer tool, please file an issue in knative-sandbox/.github and assign to @vagababov: $ch"
               if echo $ch | grep --quiet -E "^t.(Errorf|Fatalf|Logf)" ; then
-                err=$(echo $ch | sed  -E 's/([^.fm]+t\.)(Fatal|Error|Log)f([^\%]+)( %[^Tq]",)([^,]+)/\1\2\3",\5/')
+                err=$(echo $ch | sed  -E 's/(^t\.)(Fatal|Error|Log)f([^\%]+)( %[^Tqx]",)([^,]+)/\1\2\3",\5/')
                 # Not a test. Here we deal with various loggers and fmt helpers.
               elif echo $ch | grep --quiet "log" ; then
                 # Capture (x)?log(er)?.
diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 48bba30de..2d1d4bff8 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -278,8 +278,7 @@ You can delete all of the service components with:
 ko delete --ignore-not-found=true \
   -Rf config/core/ \
   -f https://github.com/knative/net-kourier/releases/download/v0.18.0/kourier.yaml \
-  -f ./third_party/cert-manager-0.12.0/cert-manager-crds.yaml \
-  -f ./third_party/cert-manager-0.12.0/cert-manager.yaml
+  -f ./third_party/cert-manager-latest/cert-manager.yaml
 ```
 
 ## Telemetry
diff --git a/config/core/configmaps/gc.yaml b/config/core/configmaps/gc.yaml
index eae65af91..cf1cd004d 100644
--- a/config/core/configmaps/gc.yaml
+++ b/config/core/configmaps/gc.yaml
@@ -20,7 +20,7 @@ metadata:
   labels:
     serving.knative.dev/release: devel
   annotations:
-    knative.dev/example-checksum: "4b89cfa0"
+    knative.dev/example-checksum: "e6149382"
 data:
   _example: |
     ################################
@@ -38,31 +38,11 @@ data:
     # this example block and unindented to be in the data block
     # to actually change the configuration.
 
-    # Delay after revision creation before considering it for GC
-    stale-revision-create-delay: "48h"
-
-    # Duration since a route has pointed at the revision before it
-    # should be GC'd.
-    # This minus lastpinned-debounce must be longer than the controller
-    # resync period (10 hours).
-    stale-revision-timeout: "15h"
-
-    # Minimum number of generations of non-active revisions to keep before
-    # considering them for GC.
-    stale-revision-minimum-generations: "20"
-
-    # To avoid constant updates, we allow an existing annotation to be stale by this
-    # amount before we update the timestamp.
-    stale-revision-lastpinned-debounce: "5h"
-
 
     # ---------------------------------------
-    # V2 Garbage Collector Settings
+    # Garbage Collector Settings
     # ---------------------------------------
     #
-    # These settings are enabled via the "responsive-revision-gc" feature flag.
-    # ALPHA NOTE: This feature is still experimental and under active development.
-    #
     # Active
     #   * Revisions which are referenced by a Route are considered active.
     #   * Individual revisions may be marked with the annotation
diff --git a/pkg/apis/config/features.go b/pkg/apis/config/features.go
index ce43c1fb5..a3b762c34 100644
--- a/pkg/apis/config/features.go
+++ b/pkg/apis/config/features.go
@@ -49,7 +49,6 @@ func defaultFeaturesConfig() *Features {
 		PodSpecRuntimeClassName: Disabled,
 		PodSpecSecurityContext:  Disabled,
 		PodSpecTolerations:      Disabled,
-		ResponsiveRevisionGC:    Enabled,
 		TagHeaderBasedRouting:   Disabled,
 	}
 }
@@ -67,7 +66,6 @@ func NewFeaturesConfigFromMap(data map[string]string) (*Features, error) {
 		asFlag("kubernetes.podspec-runtimeclassname", &nc.PodSpecRuntimeClassName),
 		asFlag("kubernetes.podspec-securitycontext", &nc.PodSpecSecurityContext),
 		asFlag("kubernetes.podspec-tolerations", &nc.PodSpecTolerations),
-		asFlag("responsive-revision-gc", &nc.ResponsiveRevisionGC),
 		asFlag("tag-header-based-routing", &nc.TagHeaderBasedRouting)); err != nil {
 		return nil, err
 	}
@@ -89,7 +87,6 @@ type Features struct {
 	PodSpecRuntimeClassName Flag
 	PodSpecSecurityContext  Flag
 	PodSpecTolerations      Flag
-	ResponsiveRevisionGC    Flag
 	TagHeaderBasedRouting   Flag
 }
 
diff --git a/pkg/apis/serving/v1/revision_helpers.go b/pkg/apis/serving/v1/revision_helpers.go
index 303376026..275b59079 100644
--- a/pkg/apis/serving/v1/revision_helpers.go
+++ b/pkg/apis/serving/v1/revision_helpers.go
@@ -17,8 +17,6 @@ limitations under the License.
 package v1
 
 import (
-	"fmt"
-	"strconv"
 	"time"
 
 	corev1 "k8s.io/api/core/v1"
@@ -91,16 +89,8 @@ type (
 	}
 
 	// +k8s:deepcopy-gen=false
-
-	// LastPinnedParseError is the error returned when the lastPinned annotation
-	// could not be parsed.
-	LastPinnedParseError AnnotationParseError
 )
 
-func (e LastPinnedParseError) Error() string {
-	return fmt.Sprintf("%v lastPinned value: %q", e.Type, e.Value)
-}
-
 // GetContainer returns a pointer to the relevant corev1.Container field.
 // It is never nil and should be exactly the specified container if len(containers) == 1 or
 // if there are multiple containers it returns the container which has Ports
@@ -163,8 +153,7 @@ func (r *Revision) GetRoutingStateModified() time.Time {
 
 // IsReachable returns whether or not the revision can be reached by a route.
 func (r *Revision) IsReachable() bool {
-	return r.Labels[serving.RouteLabelKey] != "" ||
-		RoutingState(r.Labels[serving.RoutingStateLabelKey]) == RoutingStateActive
+	return RoutingState(r.Labels[serving.RoutingStateLabelKey]) == RoutingStateActive
 }
 
 // GetProtocol returns the app level network protocol.
@@ -183,44 +172,6 @@ func (r *Revision) GetProtocol() (p net.ProtocolType) {
 	return
 }
 
-// SetLastPinned sets the revision's last pinned annotations
-// to be the specified time.
-func (r *Revision) SetLastPinned(t time.Time) {
-	if r.Annotations == nil {
-		r.Annotations = make(map[string]string, 1)
-	}
-
-	r.Annotations[serving.RevisionLastPinnedAnnotationKey] = RevisionLastPinnedString(t)
-}
-
-// GetLastPinned returns the time the revision was last pinned.
-func (r *Revision) GetLastPinned() (time.Time, error) {
-	if r.Annotations == nil {
-		return time.Time{}, LastPinnedParseError{
-			Type: AnnotationParseErrorTypeMissing,
-		}
-	}
-
-	str, ok := r.Annotations[serving.RevisionLastPinnedAnnotationKey]
-	if !ok {
-		// If a revision is past the create delay without an annotation it is stale.
-		return time.Time{}, LastPinnedParseError{
-			Type: AnnotationParseErrorTypeMissing,
-		}
-	}
-
-	secs, err := strconv.ParseInt(str, 10, 64)
-	if err != nil {
-		return time.Time{}, LastPinnedParseError{
-			Type:  AnnotationParseErrorTypeInvalid,
-			Value: str,
-			Err:   err,
-		}
-	}
-
-	return time.Unix(secs, 0), nil
-}
-
 // IsActivationRequired returns true if activation is required.
 func (rs *RevisionStatus) IsActivationRequired() bool {
 	if c := revisionCondSet.Manage(rs).GetCondition(RevisionConditionActive); c != nil {
@@ -228,8 +179,3 @@ func (rs *RevisionStatus) IsActivationRequired() bool {
 	}
 	return false
 }
-
-// RevisionLastPinnedString returns a string representation of the specified time.
-func RevisionLastPinnedString(t time.Time) string {
-	return fmt.Sprint(t.Unix())
-}
diff --git a/pkg/gc/config.go b/pkg/gc/config.go
index 97fe2b9ae..4218e6fc6 100644
--- a/pkg/gc/config.go
+++ b/pkg/gc/config.go
@@ -25,8 +25,6 @@ import (
 
 	corev1 "k8s.io/api/core/v1"
 	cm "knative.dev/pkg/configmap"
-	"knative.dev/pkg/controller"
-	"knative.dev/pkg/logging"
 )
 
 const (
@@ -42,16 +40,6 @@ const (
 
 // Config defines the tunable parameters for Garbage Collection.
 type Config struct {
-	// Delay duration after a revision create before considering it for GC
-	StaleRevisionCreateDelay time.Duration
-	// Timeout since a revision lastPinned before it should be GC'd
-	// This must be longer than the controller resync period
-	StaleRevisionTimeout time.Duration
-	// Minimum number of generations of revisions to keep before considering for GC.
-	StaleRevisionMinimumGenerations int64
-	// Minimum staleness duration before updating lastPinned
-	StaleRevisionLastpinnedDebounce time.Duration
-
 	// Duration from creation when a Revision should be considered active
 	// and exempt from GC. Note that GCMaxStaleRevision may override this if set.
 	// Set Disabled (-1) to disable/ignore duration and always consider active.
@@ -70,13 +58,6 @@ type Config struct {
 
 func defaultConfig() *Config {
 	return &Config{
-		// V1 GC Settings
-		StaleRevisionCreateDelay:        48 * time.Hour,
-		StaleRevisionTimeout:            15 * time.Hour,
-		StaleRevisionLastpinnedDebounce: 5 * time.Hour,
-		StaleRevisionMinimumGenerations: 20,
-
-		// V2 GC Settings
 		RetainSinceCreateTime:     48 * time.Hour,
 		RetainSinceLastActiveTime: 15 * time.Hour,
 		MinNonActiveRevisions:     20,
@@ -86,19 +67,11 @@ func defaultConfig() *Config {
 
 // NewConfigFromConfigMapFunc creates a Config from the supplied ConfigMap func.
 func NewConfigFromConfigMapFunc(ctx context.Context) func(configMap *corev1.ConfigMap) (*Config, error) {
-	logger := logging.FromContext(ctx)
-	minRevisionTimeout := controller.GetResyncPeriod(ctx)
 	return func(configMap *corev1.ConfigMap) (*Config, error) {
 		c := defaultConfig()
 
 		var retainCreate, retainActive, max string
 		if err := cm.Parse(configMap.Data,
-			cm.AsDuration("stale-revision-create-delay", &c.StaleRevisionCreateDelay),
-			cm.AsDuration("stale-revision-timeout", &c.StaleRevisionTimeout),
-			cm.AsDuration("stale-revision-lastpinned-debounce", &c.StaleRevisionLastpinnedDebounce),
-			cm.AsInt64("stale-revision-minimum-generations", &c.StaleRevisionMinimumGenerations),
-
-			// v2 settings
 			cm.AsString("retain-since-create-time", &retainCreate),
 			cm.AsString("retain-since-last-active-time", &retainActive),
 			cm.AsInt64("min-non-active-revisions", &c.MinNonActiveRevisions),
@@ -107,17 +80,6 @@ func NewConfigFromConfigMapFunc(ctx context.Context) func(configMap *corev1.Conf
 			return nil, fmt.Errorf("failed to parse data: %w", err)
 		}
 
-		if c.StaleRevisionMinimumGenerations < 0 {
-			return nil, fmt.Errorf(
-				"stale-revision-minimum-generations must be non-negative, was: %d",
-				c.StaleRevisionMinimumGenerations)
-		}
-		if c.StaleRevisionTimeout-c.StaleRevisionLastpinnedDebounce < minRevisionTimeout {
-			logger.Warnf("Got revision timeout of %v, minimum supported value is %v",
-				c.StaleRevisionTimeout, minRevisionTimeout+c.StaleRevisionLastpinnedDebounce)
-			c.StaleRevisionTimeout = minRevisionTimeout + c.StaleRevisionLastpinnedDebounce
-		}
-
 		// validate V2 settings
 		if err := parseDisabledOrDuration(retainCreate, &c.RetainSinceCreateTime); err != nil {
 			return nil, fmt.Errorf("failed to parse retain-since-create-time: %w", err)
@@ -126,13 +88,13 @@ func NewConfigFromConfigMapFunc(ctx context.Context) func(configMap *corev1.Conf
 			return nil, fmt.Errorf("failed to parse retain-since-last-active-time: %w", err)
 		}
 		if err := parseDisabledOrInt64(max, &c.MaxNonActiveRevisions); err != nil {
-			return nil, fmt.Errorf("failed to parse max-stale-revisions: %w", err)
+			return nil, fmt.Errorf("failed to parse max-non-active-revisions: %w", err)
 		}
 		if c.MinNonActiveRevisions < 0 {
 			return nil, fmt.Errorf("min-non-active-revisions must be non-negative, was: %d", c.MinNonActiveRevisions)
 		}
 		if c.MaxNonActiveRevisions >= 0 && c.MinNonActiveRevisions > c.MaxNonActiveRevisions {
-			return nil, fmt.Errorf("min-non-active-revisions(%d) must be <= max-stale-revisions(%d)", c.MinNonActiveRevisions, c.MaxNonActiveRevisions)
+			return nil, fmt.Errorf("min-non-active-revisions(%d) must be <= max-non-active-revisions(%d)", c.MinNonActiveRevisions, c.MaxNonActiveRevisions)
 		}
 		return c, nil
 	}
diff --git a/pkg/reconciler/configuration/resources/revision.go b/pkg/reconciler/configuration/resources/revision.go
index a8919958e..9fb516dcd 100644
--- a/pkg/reconciler/configuration/resources/revision.go
+++ b/pkg/reconciler/configuration/resources/revision.go
@@ -23,10 +23,8 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/clock"
 	"knative.dev/pkg/kmeta"
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	"knative.dev/serving/pkg/apis/serving"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
-	"knative.dev/serving/pkg/reconciler/configuration/config"
 )
 
 // MakeRevision creates a revision object from configuration.
@@ -44,9 +42,7 @@ func MakeRevision(ctx context.Context, configuration *v1.Configuration, clock cl
 	}
 
 	// Pending tells the labeler that we have not processed this revision.
-	if config.FromContextOrDefaults(ctx).Features.ResponsiveRevisionGC != cfgmap.Disabled {
-		rev.SetRoutingState(v1.RoutingStatePending, clock)
-	}
+	rev.SetRoutingState(v1.RoutingStatePending, clock)
 
 	updateRevisionLabels(rev, configuration)
 	updateRevisionAnnotations(rev, configuration)
diff --git a/pkg/reconciler/gc/config/store.go b/pkg/reconciler/gc/config/store.go
index cac21568f..83d6604c5 100644
--- a/pkg/reconciler/gc/config/store.go
+++ b/pkg/reconciler/gc/config/store.go
@@ -30,7 +30,6 @@ type cfgKey struct{}
 // Config is the configuration for GC.
 type Config struct {
 	RevisionGC *gc.Config
-	Features   *apiconfig.Features
 }
 
 // FromContext fetches the config from the context.
@@ -57,7 +56,6 @@ func (s *Store) ToContext(ctx context.Context) context.Context {
 func (s *Store) Load() *Config {
 	return &Config{
 		RevisionGC: s.UntypedLoad(gc.ConfigName).(*gc.Config).DeepCopy(),
-		Features:   s.UntypedLoad(apiconfig.FeaturesConfigName).(*apiconfig.Features).DeepCopy(),
 	}
 }
 
diff --git a/pkg/reconciler/gc/reconciler.go b/pkg/reconciler/gc/reconciler.go
index 5f5abc3ec..478c6a3c0 100644
--- a/pkg/reconciler/gc/reconciler.go
+++ b/pkg/reconciler/gc/reconciler.go
@@ -20,13 +20,10 @@ import (
 	"context"
 
 	pkgreconciler "knative.dev/pkg/reconciler"
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	clientset "knative.dev/serving/pkg/client/clientset/versioned"
 	configreconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/configuration"
 	listers "knative.dev/serving/pkg/client/listers/serving/v1"
-	configns "knative.dev/serving/pkg/reconciler/gc/config"
-	gcv1 "knative.dev/serving/pkg/reconciler/gc/v1"
 	gcv2 "knative.dev/serving/pkg/reconciler/gc/v2"
 )
 
@@ -43,12 +40,5 @@ var _ configreconciler.Interface = (*reconciler)(nil)
 
 // ReconcileKind implements Interface.ReconcileKind.
 func (c *reconciler) ReconcileKind(ctx context.Context, config *v1.Configuration) pkgreconciler.Event {
-	switch configns.FromContext(ctx).Features.ResponsiveRevisionGC {
-
-	case cfgmap.Disabled: // v1 logic
-		return gcv1.Collect(ctx, c.client, c.revisionLister, config)
-
-	default: // v2 logic
-		return gcv2.Collect(ctx, c.client, c.revisionLister, config)
-	}
+	return gcv2.Collect(ctx, c.client, c.revisionLister, config)
 }
diff --git a/pkg/reconciler/gc/v1/gc.go b/pkg/reconciler/gc/v1/gc.go
deleted file mode 100644
index 875a9c8f8..000000000
--- a/pkg/reconciler/gc/v1/gc.go
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
-Copyright 2020 The Knative Authors
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package v1
-
-import (
-	"context"
-	"errors"
-	"sort"
-	"time"
-
-	"go.uber.org/zap"
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/labels"
-	"knative.dev/pkg/logging"
-	pkgreconciler "knative.dev/pkg/reconciler"
-	"knative.dev/serving/pkg/apis/serving"
-	v1 "knative.dev/serving/pkg/apis/serving/v1"
-	clientset "knative.dev/serving/pkg/client/clientset/versioned"
-	listers "knative.dev/serving/pkg/client/listers/serving/v1"
-	configns "knative.dev/serving/pkg/reconciler/gc/config"
-)
-
-// Collect deletes stale revisions if they are sufficiently old
-func Collect(
-	ctx context.Context,
-	client clientset.Interface,
-	revisionLister listers.RevisionLister,
-	config *v1.Configuration) pkgreconciler.Event {
-	cfg := configns.FromContext(ctx).RevisionGC
-	logger := logging.FromContext(ctx)
-
-	selector := labels.SelectorFromSet(labels.Set{serving.ConfigurationLabelKey: config.Name})
-	revs, err := revisionLister.Revisions(config.Namespace).List(selector)
-	if err != nil {
-		return err
-	}
-
-	gcSkipOffset := cfg.StaleRevisionMinimumGenerations
-
-	if gcSkipOffset >= int64(len(revs)) {
-		return nil
-	}
-
-	// Sort by creation timestamp descending
-	sort.Slice(revs, func(i, j int) bool {
-		return revs[j].CreationTimestamp.Before(&revs[i].CreationTimestamp)
-	})
-
-	for _, rev := range revs[gcSkipOffset:] {
-		if isRevisionStale(ctx, rev, config) {
-			err := client.ServingV1().Revisions(rev.Namespace).Delete(ctx, rev.Name, metav1.DeleteOptions{})
-			if err != nil {
-				logger.With(zap.Error(err)).Errorf("Failed to delete stale revision %q", rev.Name)
-				continue
-			}
-		}
-	}
-	return nil
-}
-
-func isRevisionStale(ctx context.Context, rev *v1.Revision, config *v1.Configuration) bool {
-	if config.Status.LatestReadyRevisionName == rev.Name {
-		return false
-	}
-
-	cfg := configns.FromContext(ctx).RevisionGC
-	logger := logging.FromContext(ctx)
-
-	curTime := time.Now()
-	if rev.ObjectMeta.CreationTimestamp.Add(cfg.StaleRevisionCreateDelay).After(curTime) {
-		// Revision was created sooner than staleRevisionCreateDelay. Ignore it.
-		return false
-	}
-
-	lastPin, err := rev.GetLastPinned()
-	if err != nil {
-		var errLastPinned v1.LastPinnedParseError
-		if errors.As(err, &errLastPinned) && errLastPinned.Type != v1.AnnotationParseErrorTypeMissing {
-			logger.Errorw("Failed to determine revision last pinned", zap.Error(err))
-		} else {
-			// Revision was never pinned and its RevisionConditionReady is not true after staleRevisionCreateDelay.
-			// It usually happens when ksvc was deployed with wrong configuration.
-			rc := rev.Status.GetCondition(v1.RevisionConditionReady)
-			if rc == nil || rc.Status != corev1.ConditionTrue {
-				return true
-			}
-		}
-		return false
-	}
-
-	ret := lastPin.Add(cfg.StaleRevisionTimeout).Before(curTime)
-	if ret {
-		logger.Infof("Detected stale revision %v with creation time %v and lastPinned time %v.", rev.ObjectMeta.Name, rev.ObjectMeta.CreationTimestamp, lastPin)
-	}
-	return ret
-}
diff --git a/pkg/reconciler/gc/v2/gc.go b/pkg/reconciler/gc/v2/gc.go
index b27416bb0..bece2e05c 100644
--- a/pkg/reconciler/gc/v2/gc.go
+++ b/pkg/reconciler/gc/v2/gc.go
@@ -159,14 +159,11 @@ func isRevisionStale(cfg *gc.Config, rev *v1.Revision, logger *zap.SugaredLogger
 }
 
 // revisionLastActiveTime returns if present:
-// routingStateModified, then lastPinnedTime, then the created time.
+// routingStateModified, then the created time.
 // This is used for sort-ordering by most recently active.
 func revisionLastActiveTime(rev *v1.Revision) time.Time {
 	if t := rev.GetRoutingStateModified(); !t.IsZero() {
 		return t
 	}
-	if t, err := rev.GetLastPinned(); err == nil {
-		return t
-	}
 	return rev.ObjectMeta.GetCreationTimestamp().Time
 }
diff --git a/pkg/reconciler/labeler/controller.go b/pkg/reconciler/labeler/controller.go
index 85bd9aecb..d30dd0193 100644
--- a/pkg/reconciler/labeler/controller.go
+++ b/pkg/reconciler/labeler/controller.go
@@ -30,7 +30,6 @@ import (
 	routereconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/route"
 	servingreconciler "knative.dev/serving/pkg/reconciler"
 	"knative.dev/serving/pkg/reconciler/configuration/config"
-	labelerv1 "knative.dev/serving/pkg/reconciler/labeler/v1"
 	labelerv2 "knative.dev/serving/pkg/reconciler/labeler/v2"
 
 	"knative.dev/pkg/configmap"
@@ -99,11 +98,7 @@ func newControllerWithClock(
 	))
 
 	client := servingclient.Get(ctx)
-
-	c.caccV1 = labelerv1.NewConfigurationAccessor(client, tracker, configInformer.Lister())
 	c.caccV2 = labelerv2.NewConfigurationAccessor(client, tracker, configInformer.Lister(), configInformer.Informer().GetIndexer(), clock)
-
-	c.raccV1 = labelerv1.NewRevisionAccessor(client, tracker, revisionInformer.Lister())
 	c.raccV2 = labelerv2.NewRevisionAccessor(client, tracker, revisionInformer.Lister(), revisionInformer.Informer().GetIndexer(), clock)
 
 	return impl
diff --git a/pkg/reconciler/labeler/labeler.go b/pkg/reconciler/labeler/labeler.go
index 3b23ff2b0..f6299eca5 100644
--- a/pkg/reconciler/labeler/labeler.go
+++ b/pkg/reconciler/labeler/labeler.go
@@ -20,19 +20,13 @@ import (
 	"context"
 
 	pkgreconciler "knative.dev/pkg/reconciler"
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	routereconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/route"
-	"knative.dev/serving/pkg/reconciler/configuration/config"
-	labelerv1 "knative.dev/serving/pkg/reconciler/labeler/v1"
 	labelerv2 "knative.dev/serving/pkg/reconciler/labeler/v2"
 )
 
 // Reconciler implements controller.Reconciler for Route resources.
 type Reconciler struct {
-	caccV1 *labelerv1.Configuration
-	raccV1 *labelerv1.Revision
-
 	caccV2 *labelerv2.Configuration
 	raccV2 *labelerv2.Revision
 }
@@ -44,52 +38,17 @@ var _ routereconciler.Finalizer = (*Reconciler)(nil)
 // FinalizeKind removes all Route reference metadata from its traffic targets.
 // This does not modify or observe spec for the Route itself.
 func (rec *Reconciler) FinalizeKind(ctx context.Context, r *v1.Route) pkgreconciler.Event {
-	newGC := config.FromContextOrDefaults(ctx).Features.ResponsiveRevisionGC
-
-	// v1 logic
-	if newGC == cfgmap.Disabled || newGC == cfgmap.Allowed {
-		if err := labelerv1.ClearLabels(ctx, r.Namespace, r.Name, rec.caccV1, rec.raccV1); err != nil {
-			return err
-		}
+	if err := labelerv2.ClearRoutingMeta(ctx, r, rec.caccV2, rec.raccV2); err != nil {
+		return err
 	}
-
-	// v2 logic
-	if newGC == cfgmap.Allowed || newGC == cfgmap.Enabled {
-		if err := labelerv2.ClearRoutingMeta(ctx, r, rec.caccV2, rec.raccV2); err != nil {
-			return err
-		}
-	}
-
 	return nil
 }
 
 // ReconcileKind syncs the Route reference metadata to its traffic targets.
 // This does not modify or observe spec for the Route itself.
 func (rec *Reconciler) ReconcileKind(ctx context.Context, r *v1.Route) pkgreconciler.Event {
-	switch config.FromContextOrDefaults(ctx).Features.ResponsiveRevisionGC {
-	case cfgmap.Disabled:
-		if err := labelerv1.SyncLabels(ctx, r, rec.caccV1, rec.raccV1); err != nil {
-			return err
-		}
-		// Clear the new label for downgrade
-		if err := labelerv2.ClearRoutingMeta(ctx, r, rec.caccV2, rec.raccV2); err != nil {
-			return err
-		}
-	case cfgmap.Allowed: // Both labelers on, down/upgrade don't lose data.
-		if err := labelerv1.SyncLabels(ctx, r, rec.caccV1, rec.raccV1); err != nil {
-			return err
-		}
-		if err := labelerv2.SyncRoutingMeta(ctx, r, rec.caccV2, rec.raccV2); err != nil {
-			return err
-		}
-	case cfgmap.Enabled:
-		if err := labelerv2.SyncRoutingMeta(ctx, r, rec.caccV2, rec.raccV2); err != nil {
-			return err
-		}
-		// Clear the old label for upgrade
-		if err := labelerv1.ClearLabels(ctx, r.Namespace, r.Name, rec.caccV1, rec.raccV1); err != nil {
-			return err
-		}
+	if err := labelerv2.SyncRoutingMeta(ctx, r, rec.caccV2, rec.raccV2); err != nil {
+		return err
 	}
 
 	return nil
diff --git a/pkg/reconciler/labeler/v1/accessors.go b/pkg/reconciler/labeler/v1/accessors.go
deleted file mode 100644
index 0ac7658c5..000000000
--- a/pkg/reconciler/labeler/v1/accessors.go
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
-Copyright 2020 The Knative Authors
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package v1
-
-import (
-	"context"
-
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/apimachinery/pkg/types"
-	"knative.dev/pkg/kmeta"
-
-	"knative.dev/pkg/tracker"
-	"knative.dev/serving/pkg/apis/serving"
-	clientset "knative.dev/serving/pkg/client/clientset/versioned"
-	listers "knative.dev/serving/pkg/client/listers/serving/v1"
-)
-
-// Accessor defines an abstraction for manipulating labeled entity
-// (Configuration, Revision) with shared logic.
-type Accessor interface {
-	get(ctx context.Context, ns, name string) (kmeta.Accessor, error)
-	list(ctx context.Context, ns, name string) ([]kmeta.Accessor, error)
-	patch(ctx context.Context, ns, name string, pt types.PatchType, p []byte) error
-}
-
-// Revision is an implementation of Accessor for Revisions.
-type Revision struct {
-	client         clientset.Interface
-	tracker        tracker.Interface
-	revisionLister listers.RevisionLister
-}
-
-// Revision implements Accessor
-var _ Accessor = (*Revision)(nil)
-
-// NewRevisionAccessor is a factory function to make a new revision accessor.
-func NewRevisionAccessor(
-	client clientset.Interface,
-	tracker tracker.Interface,
-	lister listers.RevisionLister) *Revision {
-	return &Revision{
-		client:         client,
-		tracker:        tracker,
-		revisionLister: lister,
-	}
-}
-
-// get implements Accessor
-func (r *Revision) get(_ context.Context, ns, name string) (kmeta.Accessor, error) {
-	return r.revisionLister.Revisions(ns).Get(name)
-}
-
-// list implements Accessor
-func (r *Revision) list(_ context.Context, ns, name string) ([]kmeta.Accessor, error) {
-	rl, err := r.revisionLister.Revisions(ns).List(labels.SelectorFromSet(labels.Set{
-		serving.RouteLabelKey: name,
-	}))
-	if err != nil {
-		return nil, err
-	}
-	// Need a copy to change types in Go
-	kl := make([]kmeta.Accessor, len(rl))
-	for i, r := range rl {
-		kl[i] = r
-	}
-	return kl, err
-}
-
-// patch implements Accessor
-func (r *Revision) patch(ctx context.Context, ns, name string, pt types.PatchType, p []byte) error {
-	_, err := r.client.ServingV1().Revisions(ns).Patch(ctx, name, pt, p, metav1.PatchOptions{})
-	return err
-}
-
-// Configuration is an implementation of Accessor for Configurations.
-type Configuration struct {
-	client              clientset.Interface
-	tracker             tracker.Interface
-	configurationLister listers.ConfigurationLister
-}
-
-// Configuration implements Accessor
-var _ Accessor = (*Configuration)(nil)
-
-// NewConfigurationAccessor is a factory function to make a new configuration Accessor.
-func NewConfigurationAccessor(
-	client clientset.Interface,
-	tracker tracker.Interface,
-	lister listers.ConfigurationLister) *Configuration {
-	return &Configuration{
-		client:              client,
-		tracker:             tracker,
-		configurationLister: lister,
-	}
-}
-
-// get implements Accessor
-func (c *Configuration) get(_ context.Context, ns, name string) (kmeta.Accessor, error) {
-	return c.configurationLister.Configurations(ns).Get(name)
-}
-
-// list implements Accessor
-func (c *Configuration) list(_ context.Context, ns, name string) ([]kmeta.Accessor, error) {
-	cl, err := c.configurationLister.Configurations(ns).List(labels.SelectorFromSet(labels.Set{
-		serving.RouteLabelKey: name,
-	}))
-	if err != nil {
-		return nil, err
-	}
-	// Need a copy to change types in Go
-	kl := make([]kmeta.Accessor, len(cl))
-	for i, c := range cl {
-		kl[i] = c
-	}
-	return kl, err
-}
-
-// patch implements Accessor
-func (c *Configuration) patch(ctx context.Context, ns, name string, pt types.PatchType, p []byte) error {
-	_, err := c.client.ServingV1().Configurations(ns).Patch(ctx, name, pt, p, metav1.PatchOptions{})
-	return err
-}
diff --git a/pkg/reconciler/labeler/v1/labels.go b/pkg/reconciler/labeler/v1/labels.go
deleted file mode 100644
index fe6fef962..000000000
--- a/pkg/reconciler/labeler/v1/labels.go
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
-Copyright 2018 The Knative Authors
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package v1
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/apimachinery/pkg/util/sets"
-	"knative.dev/pkg/kmeta"
-	"knative.dev/pkg/tracker"
-
-	"knative.dev/serving/pkg/apis/serving"
-	v1 "knative.dev/serving/pkg/apis/serving/v1"
-)
-
-// SyncLabels makes sure that the revisions and configurations referenced from
-// a Route are labeled with route labels.
-func SyncLabels(ctx context.Context, r *v1.Route, cacc *Configuration, racc *Revision) error {
-	revisions := sets.NewString()
-	configs := sets.NewString()
-
-	// Walk the Route's .status.traffic and .spec.traffic and build a list
-	// of revisions and configurations to label
-	for _, tt := range append(r.Status.Traffic, r.Spec.Traffic...) {
-		revName := tt.RevisionName
-		configName := tt.ConfigurationName
-
-		if revName != "" {
-			if err := racc.tracker.TrackReference(ref(r.Namespace, revName, "Revision"), r); err != nil {
-				return err
-			}
-
-			rev, err := racc.get(ctx, r.Namespace, revName)
-			if err != nil {
-				// The revision might not exist (yet). The informers will notify if it gets created.
-				continue
-			}
-
-			revisions.Insert(revName)
-
-			// If the owner reference is a configuration, treat it like a configuration target
-			if owner := metav1.GetControllerOf(rev); owner != nil && owner.Kind == "Configuration" {
-				configName = owner.Name
-			}
-		}
-
-		if configName != "" {
-			if err := cacc.tracker.TrackReference(ref(r.Namespace, configName, "Configuration"), r); err != nil {
-				return err
-			}
-
-			config, err := cacc.configurationLister.Configurations(r.Namespace).Get(configName)
-			if err != nil {
-				// The config might not exist (yet). The informers will notify if it gets created.
-				continue
-			}
-
-			configs.Insert(configName)
-
-			// If the target is for the latest revision, add the latest created revision to the list
-			// so that there is a smooth transition when the new revision becomes ready.
-			if config.Status.LatestCreatedRevisionName != "" && tt.LatestRevision != nil && *tt.LatestRevision {
-				revisions.Insert(config.Status.LatestCreatedRevisionName)
-			}
-		}
-	}
-
-	// Clear old labels only after the route is fully resolved
-	if r.IsReady() || r.IsFailed() {
-		if err := deleteLabelForNotListed(ctx, r.Namespace, r.Name, racc, revisions); err != nil {
-			return err
-		}
-		if err := deleteLabelForNotListed(ctx, r.Namespace, r.Name, cacc, configs); err != nil {
-			return err
-		}
-	}
-
-	if err := setLabelForListed(ctx, r, racc, revisions); err != nil {
-		return err
-	}
-	return setLabelForListed(ctx, r, cacc, configs)
-}
-
-// ClearLabels removes any labels for a named route from given accessors.
-func ClearLabels(ctx context.Context, ns, name string, accs ...Accessor) error {
-	for _, acc := range accs {
-		if err := deleteLabelForNotListed(ctx, ns, name, acc, nil /*none listed*/); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// setLabelForListed uses the accessor to attach the label for this route to every element
-// listed within "names" in the same namespace.
-func setLabelForListed(ctx context.Context, route *v1.Route, acc Accessor, names sets.String) error {
-	for name := range names {
-		elt, err := acc.get(ctx, route.Namespace, name)
-		if err != nil {
-			return err
-		}
-		routeName, ok := elt.GetLabels()[serving.RouteLabelKey]
-		if ok {
-			if routeName != route.Name {
-				return fmt.Errorf("%s %q is already in use by %q, and cannot be used by %q",
-					elt.GroupVersionKind(), elt.GetName(), routeName, route.Name)
-			}
-		} else {
-			if err := setRouteLabel(ctx, acc, elt, &route.Name); err != nil {
-				return fmt.Errorf("failed to add route label to %s %q: %w",
-					elt.GroupVersionKind(), elt.GetName(), err)
-			}
-		}
-	}
-
-	return nil
-}
-
-// deleteLabelForNotListed uses the accessor to delete the label from any listable entity that is
-// not named within our list.  Unlike setLabelForListed, this function takes ns/name instead of a
-// Route so that it can clean things up when a Route ceases to exist.
-func deleteLabelForNotListed(ctx context.Context, ns, name string, acc Accessor, names sets.String) error {
-	oldList, err := acc.list(ctx, ns, name)
-	if err != nil {
-		return err
-	}
-
-	// Delete label for newly removed traffic targets.
-	for _, elt := range oldList {
-		if names.Has(elt.GetName()) {
-			continue
-		}
-
-		if err := setRouteLabel(ctx, acc, elt, nil); err != nil {
-			return fmt.Errorf("failed to remove route label to %s %q: %w",
-				elt.GroupVersionKind(), elt.GetName(), err)
-		}
-	}
-
-	return nil
-}
-
-// setRouteLabel toggles the route label on the specified element through the provided accessor.
-// a nil route name will cause the route label to be deleted, and a non-nil route will cause
-// that route name to be attached to the element.
-func setRouteLabel(ctx context.Context, acc Accessor, elt kmeta.Accessor, routeName *string) error {
-	mergePatch := map[string]interface{}{
-		"metadata": map[string]interface{}{
-			"labels": map[string]interface{}{
-				serving.RouteLabelKey: routeName,
-			},
-		},
-	}
-
-	patch, err := json.Marshal(mergePatch)
-	if err != nil {
-		return err
-	}
-
-	return acc.patch(ctx, elt.GetNamespace(), elt.GetName(), types.MergePatchType, patch)
-}
-
-func ref(namespace, name, kind string) tracker.Reference {
-	apiVersion, kind := v1.SchemeGroupVersion.WithKind(kind).ToAPIVersionAndKind()
-	return tracker.Reference{
-		APIVersion: apiVersion,
-		Kind:       kind,
-		Name:       name,
-		Namespace:  namespace,
-	}
-}
diff --git a/pkg/reconciler/route/reconcile_resources.go b/pkg/reconciler/route/reconcile_resources.go
index 109e38baa..da5b2afec 100644
--- a/pkg/reconciler/route/reconcile_resources.go
+++ b/pkg/reconciler/route/reconcile_resources.go
@@ -19,7 +19,6 @@ package route
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 
 	"github.com/davecgh/go-spew/spew"
@@ -29,17 +28,14 @@ import (
 	"k8s.io/apimachinery/pkg/api/equality"
 	apierrs "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/sets"
 
 	"knative.dev/networking/pkg/apis/networking"
 	netv1alpha1 "knative.dev/networking/pkg/apis/networking/v1alpha1"
-	"knative.dev/pkg/apis/duck"
 	"knative.dev/pkg/controller"
 	"knative.dev/pkg/kmeta"
 	"knative.dev/pkg/logging"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
-	"knative.dev/serving/pkg/reconciler/route/config"
 	"knative.dev/serving/pkg/reconciler/route/resources"
 	"knative.dev/serving/pkg/reconciler/route/resources/names"
 	"knative.dev/serving/pkg/reconciler/route/traffic"
@@ -210,56 +206,6 @@ func (c *Reconciler) updatePlaceholderServices(ctx context.Context, route *v1.Ro
 	return eg.Wait()
 }
 
-// Update the lastPinned annotation on revisions we target so they don't get GC'd.
-func (c *Reconciler) reconcileTargetRevisions(ctx context.Context, t *traffic.Config, route *v1.Route) error {
-	gcConfig := config.FromContext(ctx).GC
-	logger := logging.FromContext(ctx)
-	lpDebounce := gcConfig.StaleRevisionLastpinnedDebounce
-
-	eg, egCtx := errgroup.WithContext(ctx)
-	for _, target := range t.Targets {
-		for _, rt := range target {
-			tt := rt.TrafficTarget
-			eg.Go(func() error {
-				rev, err := c.revisionLister.Revisions(route.Namespace).Get(tt.RevisionName)
-				if apierrs.IsNotFound(err) {
-					logger.Infof("Unable to update lastPinned for missing revision %q", tt.RevisionName)
-					return nil
-				} else if err != nil {
-					return err
-				}
-
-				newRev := rev.DeepCopy()
-
-				lastPin, err := newRev.GetLastPinned()
-				if err != nil {
-					// Missing is an expected error case for a not yet pinned revision.
-					var errLastPinned v1.LastPinnedParseError
-					if errors.As(err, &errLastPinned) && errLastPinned.Type != v1.AnnotationParseErrorTypeMissing {
-						return err
-					}
-				} else if lastPin.Add(lpDebounce).After(c.clock.Now()) {
-					// Enforce a delay before performing an update on lastPinned to avoid excess churn.
-					return nil
-				}
-
-				newRev.SetLastPinned(c.clock.Now())
-
-				patch, err := duck.CreateMergePatch(rev, newRev)
-				if err != nil {
-					return err
-				}
-
-				if _, err := c.client.ServingV1().Revisions(route.Namespace).Patch(egCtx, rev.Name, types.MergePatchType, patch, metav1.PatchOptions{}); err != nil {
-					return fmt.Errorf("failed to set revision annotation: %w", err)
-				}
-				return nil
-			})
-		}
-	}
-	return eg.Wait()
-}
-
 func serializeRollout(ctx context.Context, r *traffic.Rollout) string {
 	sr, err := json.Marshal(r)
 	if err != nil {
diff --git a/pkg/reconciler/route/route.go b/pkg/reconciler/route/route.go
index c149d4833..b25a2aa84 100644
--- a/pkg/reconciler/route/route.go
+++ b/pkg/reconciler/route/route.go
@@ -41,7 +41,6 @@ import (
 	pkgreconciler "knative.dev/pkg/reconciler"
 	"knative.dev/pkg/system"
 	"knative.dev/pkg/tracker"
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	clientset "knative.dev/serving/pkg/client/clientset/versioned"
 	routereconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/route"
@@ -127,14 +126,6 @@ func (c *Reconciler) ReconcileKind(ctx context.Context, r *v1.Route) pkgreconcil
 		return err
 	}
 
-	if config.FromContextOrDefaults(ctx).Features.ResponsiveRevisionGC != cfgmap.Enabled {
-		// In all cases we will add annotations to the referred targets.  This is so that when they become
-		// routable we can know (through a listener) and attempt traffic configuration again.
-		if err := c.reconcileTargetRevisions(ctx, traffic, r); err != nil {
-			return err
-		}
-	}
-
 	r.Status.Address = &duckv1.Addressable{
 		URL: &apis.URL{
 			Scheme: "http",
diff --git a/pkg/reconciler/service/resources/configuration.go b/pkg/reconciler/service/resources/configuration.go
index 7ec5d1811..6e5920765 100644
--- a/pkg/reconciler/service/resources/configuration.go
+++ b/pkg/reconciler/service/resources/configuration.go
@@ -23,7 +23,6 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 	"knative.dev/pkg/kmeta"
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	"knative.dev/serving/pkg/apis/serving"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	labelerv2 "knative.dev/serving/pkg/reconciler/labeler/v2"
@@ -32,28 +31,22 @@ import (
 
 // MakeConfiguration creates a Configuration from a Service object.
 func MakeConfiguration(service *v1.Service) (*v1.Configuration, error) {
-	return MakeConfigurationFromExisting(service, &v1.Configuration{}, cfgmap.Enabled)
+	return MakeConfigurationFromExisting(service, &v1.Configuration{})
 }
 
 // MakeConfigurationFromExisting creates a Configuration from a Service object given an existing Configuration.
-func MakeConfigurationFromExisting(service *v1.Service, existing *v1.Configuration, gc cfgmap.Flag) (*v1.Configuration, error) {
+func MakeConfigurationFromExisting(service *v1.Service, existing *v1.Configuration) (*v1.Configuration, error) {
 	labels := map[string]string{serving.ServiceLabelKey: service.Name}
 	anns := kmeta.FilterMap(service.GetAnnotations(), func(key string) bool {
 		return key == corev1.LastAppliedConfigAnnotation
 	})
 
 	routeName := names.Route(service)
-	if gc != cfgmap.Enabled {
-		labels[serving.RouteLabelKey] = routeName
-	}
-
-	if gc != cfgmap.Disabled {
-		set := labelerv2.GetListAnnValue(existing.Annotations, serving.RoutesAnnotationKey)
-		if !set.Has(routeName) {
-			set.Insert(routeName)
-		}
-		anns[serving.RoutesAnnotationKey] = strings.Join(set.UnsortedList(), ",")
+	set := labelerv2.GetListAnnValue(existing.Annotations, serving.RoutesAnnotationKey)
+	if !set.Has(routeName) {
+		set.Insert(routeName)
 	}
+	anns[serving.RoutesAnnotationKey] = strings.Join(set.UnsortedList(), ",")
 
 	return &v1.Configuration{
 		ObjectMeta: metav1.ObjectMeta{
diff --git a/pkg/reconciler/service/service.go b/pkg/reconciler/service/service.go
index f21d57dd7..ca360ce91 100644
--- a/pkg/reconciler/service/service.go
+++ b/pkg/reconciler/service/service.go
@@ -34,7 +34,6 @@ import (
 	"knative.dev/pkg/kmp"
 	"knative.dev/pkg/logging"
 	pkgreconciler "knative.dev/pkg/reconciler"
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	"knative.dev/serving/pkg/apis/serving"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	listers "knative.dev/serving/pkg/client/listers/serving/v1"
@@ -185,8 +184,7 @@ func (c *Reconciler) checkRoutesNotReady(config *v1.Configuration, logger *zap.S
 }
 
 func (c *Reconciler) createConfiguration(ctx context.Context, service *v1.Service) (*v1.Configuration, error) {
-	gc := cfgmap.FromContextOrDefaults(ctx).Features.ResponsiveRevisionGC
-	cfg, err := resources.MakeConfigurationFromExisting(service, &v1.Configuration{}, gc)
+	cfg, err := resources.MakeConfiguration(service)
 	if err != nil {
 		return nil, err
 	}
@@ -214,8 +212,7 @@ func (c *Reconciler) reconcileConfiguration(ctx context.Context, service *v1.Ser
 	// We are setting the up-to-date default values here so an update won't be triggered if the only
 	// diff is the new default values.
 	existing.SetDefaults(ctx)
-	gc := cfgmap.FromContextOrDefaults(ctx).Features.ResponsiveRevisionGC
-	desiredConfig, err := resources.MakeConfigurationFromExisting(service, existing, gc)
+	desiredConfig, err := resources.MakeConfigurationFromExisting(service, existing)
 	if err != nil {
 		return nil, err
 	}


Test patch:
diff --git a/pkg/apis/config/features_test.go b/pkg/apis/config/features_test.go
index f0e5629ef..0ec3bf592 100644
--- a/pkg/apis/config/features_test.go
+++ b/pkg/apis/config/features_test.go
@@ -66,7 +66,6 @@ func TestFeaturesConfiguration(t *testing.T) {
 			PodSpecRuntimeClassName: Enabled,
 			PodSpecSecurityContext:  Enabled,
 			PodSpecTolerations:      Enabled,
-			ResponsiveRevisionGC:    Enabled,
 			TagHeaderBasedRouting:   Enabled,
 		}),
 		data: map[string]string{
@@ -242,24 +241,6 @@ func TestFeaturesConfiguration(t *testing.T) {
 		data: map[string]string{
 			"kubernetes.podspec-tolerations": "Disabled",
 		},
-	}, {
-		name:    "responsive-revision-gc Allowed",
-		wantErr: false,
-		wantFeatures: defaultWith(&Features{
-			ResponsiveRevisionGC: Allowed,
-		}),
-		data: map[string]string{
-			"responsive-revision-gc": "Allowed",
-		},
-	}, {
-		name:    "responsive-revision-gc Enabled",
-		wantErr: false,
-		wantFeatures: defaultWith(&Features{
-			ResponsiveRevisionGC: Enabled,
-		}),
-		data: map[string]string{
-			"responsive-revision-gc": "Enabled",
-		},
 	}, {
 		name:    "security context Allowed",
 		wantErr: false,
diff --git a/pkg/apis/serving/v1/revision_helpers_test.go b/pkg/apis/serving/v1/revision_helpers_test.go
index a45b7f556..aeb5b699b 100644
--- a/pkg/apis/serving/v1/revision_helpers_test.go
+++ b/pkg/apis/serving/v1/revision_helpers_test.go
@@ -106,92 +106,18 @@ func TestIsActivationRequired(t *testing.T) {
 	}
 }
 
-func TestRevisionGetLastPinned(t *testing.T) {
-	cases := []struct {
-		name              string
-		annotations       map[string]string
-		expectTime        time.Time
-		setLastPinnedTime time.Time
-		expectErr         error
-	}{{
-		name: "Nil annotations",
-		expectErr: LastPinnedParseError{
-			Type: AnnotationParseErrorTypeMissing,
-		},
-	}, {
-		name:        "Empty map annotations",
-		annotations: map[string]string{},
-		expectErr: LastPinnedParseError{
-			Type: AnnotationParseErrorTypeMissing,
-		},
-	}, {
-		name:              "Empty map annotations - with set time",
-		annotations:       map[string]string{},
-		setLastPinnedTime: time.Unix(1000, 0),
-		expectTime:        time.Unix(1000, 0),
-	}, {
-		name:        "Invalid time",
-		annotations: map[string]string{serving.RevisionLastPinnedAnnotationKey: "abcd"},
-		expectErr: LastPinnedParseError{
-			Type:  AnnotationParseErrorTypeInvalid,
-			Value: "abcd",
-		},
-	}, {
-		name:        "Valid time",
-		annotations: map[string]string{serving.RevisionLastPinnedAnnotationKey: "10000"},
-		expectTime:  time.Unix(10000, 0),
-	}, {
-		name:              "Valid time empty annotations",
-		setLastPinnedTime: time.Unix(1000, 0),
-		expectTime:        time.Unix(1000, 0),
-	}}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			rev := Revision{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: tc.annotations,
-				},
-			}
-
-			if tc.setLastPinnedTime != (time.Time{}) {
-				rev.SetLastPinned(tc.setLastPinnedTime)
-			}
-
-			pt, err := rev.GetLastPinned()
-			failErr := func() {
-				t.Fatalf("Expected error %v got %v", tc.expectErr, err)
-			}
-
-			if tc.expectErr == nil {
-				if err != nil {
-					failErr()
-				}
-			} else {
-				if tc.expectErr.Error() != err.Error() {
-					failErr()
-				}
-			}
-
-			if tc.expectTime != pt {
-				t.Fatalf("Expected pin time %v got %v", tc.expectTime, pt)
-			}
-		})
-	}
-}
-
 func TestRevisionIsReachable(t *testing.T) {
 	tests := []struct {
 		name   string
 		labels map[string]string
 		want   bool
 	}{{
-		name:   "has route annotation",
-		labels: map[string]string{serving.RouteLabelKey: "the-route"},
+		name:   "has serving state label",
+		labels: map[string]string{serving.RoutingStateLabelKey: "active"},
 		want:   true,
 	}, {
 		name:   "empty route annotation",
-		labels: map[string]string{serving.RouteLabelKey: ""},
+		labels: map[string]string{serving.RoutingStateLabelKey: ""},
 		want:   false,
 	}, {
 		name:   "no route annotation",
diff --git a/pkg/gc/config_test.go b/pkg/gc/config_test.go
index e686b8e85..a4fc035e4 100644
--- a/pkg/gc/config_test.go
+++ b/pkg/gc/config_test.go
@@ -47,42 +47,16 @@ func TestOurConfig(t *testing.T) {
 	}, {
 		name: "with value overrides",
 		want: &Config{
-			StaleRevisionCreateDelay:        15 * time.Hour,
-			StaleRevisionTimeout:            14 * time.Hour,
-			StaleRevisionMinimumGenerations: 10,
-			StaleRevisionLastpinnedDebounce: 2*time.Hour + 30*time.Minute + 44*time.Second,
-			RetainSinceCreateTime:           17 * time.Hour,
-			RetainSinceLastActiveTime:       16 * time.Hour,
-			MinNonActiveRevisions:           5,
-			MaxNonActiveRevisions:           500,
+			RetainSinceCreateTime:     17 * time.Hour,
+			RetainSinceLastActiveTime: 16 * time.Hour,
+			MinNonActiveRevisions:     5,
+			MaxNonActiveRevisions:     500,
 		},
 		data: map[string]string{
-			"stale-revision-create-delay":        "15h",
-			"stale-revision-timeout":             "14h",
-			"stale-revision-minimum-generations": "10",
-			"stale-revision-lastpinned-debounce": "2h30m44s",
-			"retain-since-create-time":           "17h",
-			"retain-since-last-active-time":      "16h",
-			"min-non-active-revisions":           "5",
-			"max-non-active-revisions":           "500",
-		},
-	}, {
-		name: "invalid duration",
-		fail: true,
-		data: map[string]string{
-			"stale-revision-create-delay": "invalid",
-		},
-	}, {
-		name: "invalid negative minimum generation",
-		fail: true,
-		data: map[string]string{
-			"stale-revision-minimum-generations": "-1",
-		},
-	}, {
-		name: "invalid minimum generation",
-		fail: true,
-		data: map[string]string{
-			"stale-revision-minimum-generations": "invalid",
+			"retain-since-create-time":      "17h",
+			"retain-since-last-active-time": "16h",
+			"min-non-active-revisions":      "5",
+			"max-non-active-revisions":      "500",
 		},
 	}, {
 		name: "Invalid negative min stale",
@@ -157,23 +131,6 @@ func TestOurConfig(t *testing.T) {
 		data: map[string]string{
 			"max-non-active-revisions": disabled,
 		},
-	}, {
-		name: "below minimum timeout",
-		fail: false,
-		want: &Config{
-			StaleRevisionCreateDelay:        15 * time.Hour,
-			StaleRevisionTimeout:            15 * time.Hour,
-			StaleRevisionMinimumGenerations: 20,
-			StaleRevisionLastpinnedDebounce: 5 * time.Hour,
-			RetainSinceCreateTime:           48 * time.Hour,
-			RetainSinceLastActiveTime:       15 * time.Hour,
-			MinNonActiveRevisions:           20,
-			MaxNonActiveRevisions:           1000,
-		},
-		data: map[string]string{
-			"stale-revision-create-delay": "15h",
-			"stale-revision-timeout":      "1h",
-		},
 	}} {
 		t.Run(tt.name, func(t *testing.T) {
 			got, err := NewConfigFromConfigMapFunc(logtesting.TestContextWithLogger(t))(
diff --git a/pkg/gc/zz_generated.deepcopy_test.go b/pkg/gc/zz_generated.deepcopy_test.go
index 70f09a94e..a94eb9270 100644
--- a/pkg/gc/zz_generated.deepcopy_test.go
+++ b/pkg/gc/zz_generated.deepcopy_test.go
@@ -25,10 +25,10 @@ import (
 
 func TestDeepCopy(t *testing.T) {
 	src := Config{
-		StaleRevisionCreateDelay:        5 * time.Minute,
-		StaleRevisionTimeout:            5 * time.Minute,
-		StaleRevisionMinimumGenerations: 1,
-		StaleRevisionLastpinnedDebounce: 1 * time.Minute,
+		RetainSinceCreateTime:     5 * time.Minute,
+		RetainSinceLastActiveTime: 5 * time.Minute,
+		MinNonActiveRevisions:     1,
+		MaxNonActiveRevisions:     5,
 	}
 
 	if diff := cmp.Diff(src, *src.DeepCopy()); diff != "" {
@@ -39,10 +39,10 @@ func TestDeepCopy(t *testing.T) {
 func TestDeepCopyInto(t *testing.T) {
 	var dest Config
 	src := Config{
-		StaleRevisionCreateDelay:        5 * time.Minute,
-		StaleRevisionTimeout:            5 * time.Minute,
-		StaleRevisionMinimumGenerations: 1,
-		StaleRevisionLastpinnedDebounce: 1 * time.Minute,
+		RetainSinceCreateTime:     5 * time.Minute,
+		RetainSinceLastActiveTime: 5 * time.Minute,
+		MinNonActiveRevisions:     1,
+		MaxNonActiveRevisions:     5,
 	}
 
 	src.DeepCopyInto(&dest)
diff --git a/pkg/reconciler/configuration/configuration_test.go b/pkg/reconciler/configuration/configuration_test.go
index 3e167626f..675fa7941 100644
--- a/pkg/reconciler/configuration/configuration_test.go
+++ b/pkg/reconciler/configuration/configuration_test.go
@@ -37,7 +37,6 @@ import (
 	"knative.dev/pkg/controller"
 	"knative.dev/pkg/logging"
 	"knative.dev/pkg/ptr"
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	servingclient "knative.dev/serving/pkg/client/injection/client/fake"
 	configreconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/configuration"
@@ -69,18 +68,6 @@ func TestReconcile(t *testing.T) {
 	test(t)
 }
 
-func TestReconcileNewGCEnabled(t *testing.T) {
-	testClock = clock.NewFakeClock(time.Now())
-
-	c := &config.Config{
-		Features: &cfgmap.Features{
-			ResponsiveRevisionGC: cfgmap.Enabled,
-		},
-	}
-	testCtx = config.ToContext(context.Background(), c)
-	test(t)
-}
-
 func test(t *testing.T) {
 	retryAttempted := false
 	now := testClock.Now()
diff --git a/pkg/reconciler/configuration/resources/revision_test.go b/pkg/reconciler/configuration/resources/revision_test.go
index 2a365c531..aa1ab1179 100644
--- a/pkg/reconciler/configuration/resources/revision_test.go
+++ b/pkg/reconciler/configuration/resources/revision_test.go
@@ -27,10 +27,8 @@ import (
 	"k8s.io/apimachinery/pkg/util/clock"
 
 	"knative.dev/pkg/ptr"
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	"knative.dev/serving/pkg/apis/serving"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
-	"knative.dev/serving/pkg/reconciler/configuration/config"
 )
 
 var fakeCurTime = time.Unix(1e9, 0)
@@ -121,9 +119,11 @@ func TestMakeRevisions(t *testing.T) {
 		},
 		want: &v1.Revision{
 			ObjectMeta: metav1.ObjectMeta{
-				Namespace:   "with",
-				Name:        "labels-00100",
-				Annotations: map[string]string{},
+				Namespace: "with",
+				Name:      "labels-00100",
+				Annotations: map[string]string{
+					serving.RoutingStateModifiedAnnotationKey: v1.RoutingStateModifiedString(clock),
+				},
 				OwnerReferences: []metav1.OwnerReference{{
 					APIVersion:         v1.SchemeGroupVersion.String(),
 					Kind:               "Configuration",
@@ -135,6 +135,7 @@ func TestMakeRevisions(t *testing.T) {
 					serving.ConfigurationLabelKey:           "labels",
 					serving.ConfigurationGenerationLabelKey: "100",
 					serving.ServiceLabelKey:                 "",
+					serving.RoutingStateLabelKey:            "pending",
 					"foo":                                   "bar",
 					"baz":                                   "blah",
 				},
@@ -188,10 +189,12 @@ func TestMakeRevisions(t *testing.T) {
 					serving.ConfigurationLabelKey:           "annotations",
 					serving.ConfigurationGenerationLabelKey: "100",
 					serving.ServiceLabelKey:                 "",
+					serving.RoutingStateLabelKey:            "pending",
 				},
 				Annotations: map[string]string{
 					"foo": "bar",
 					"baz": "blah",
+					serving.RoutingStateModifiedAnnotationKey: v1.RoutingStateModifiedString(clock),
 				},
 			},
 			Spec: v1.RevisionSpec{
@@ -297,6 +300,7 @@ func TestMakeRevisions(t *testing.T) {
 					"serving.knative.dev/creator": "someone",
 					"foo":                         "bar",
 					"baz":                         "blah",
+					serving.RoutingStateModifiedAnnotationKey: v1.RoutingStateModifiedString(clock),
 				},
 				OwnerReferences: []metav1.OwnerReference{{
 					APIVersion:         v1.SchemeGroupVersion.String(),
@@ -309,6 +313,7 @@ func TestMakeRevisions(t *testing.T) {
 					serving.ConfigurationLabelKey:           "config",
 					serving.ConfigurationGenerationLabelKey: "10",
 					serving.ServiceLabelKey:                 "",
+					serving.RoutingStateLabelKey:            "pending",
 				},
 			},
 			Spec: v1.RevisionSpec{
@@ -323,29 +328,10 @@ func TestMakeRevisions(t *testing.T) {
 
 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {
-			ctx := context.Background()
-			ctx = enableResponsiveGC(ctx, test.responsiveGC)
-
-			got := MakeRevision(ctx, test.configuration, clock)
+			got := MakeRevision(context.Background(), test.configuration, clock)
 			if diff := cmp.Diff(test.want, got); diff != "" {
 				t.Error("MakeRevision (-want, +got) =", diff)
 			}
 		})
 	}
 }
-
-func enableResponsiveGC(ctx context.Context, enabled bool) context.Context {
-	flag := cfgmap.Disabled
-	if enabled {
-		flag = cfgmap.Enabled
-	}
-
-	defaultDefaults, _ := cfgmap.NewDefaultsConfigFromMap(map[string]string{})
-	c := &config.Config{
-		Features: &cfgmap.Features{
-			ResponsiveRevisionGC: flag,
-		},
-		Defaults: defaultDefaults,
-	}
-	return config.ToContext(ctx, c)
-}
diff --git a/pkg/reconciler/gc/config/store_test.go b/pkg/reconciler/gc/config/store_test.go
index 6b1f3051f..6ef71c76e 100644
--- a/pkg/reconciler/gc/config/store_test.go
+++ b/pkg/reconciler/gc/config/store_test.go
@@ -23,7 +23,6 @@ import (
 	"github.com/google/go-cmp/cmp"
 
 	logtesting "knative.dev/pkg/logging/testing"
-	apiconfig "knative.dev/serving/pkg/apis/config"
 	"knative.dev/serving/pkg/gc"
 
 	. "knative.dev/pkg/configmap/testing"
@@ -47,11 +46,4 @@ func TestStoreLoadWithContext(t *testing.T) {
 			t.Error("Unexpected controller config (-want, +got):", diff)
 		}
 	})
-
-	t.Run("features", func(t *testing.T) {
-		expected, _ := apiconfig.NewFeaturesConfigFromConfigMap(featuresConfig)
-		if diff := cmp.Diff(expected, config.Features); diff != "" {
-			t.Error("Unexpected controller config (-want, +got):", diff)
-		}
-	})
 }
diff --git a/pkg/reconciler/gc/reconciler_test.go b/pkg/reconciler/gc/reconciler_test.go
index 39317262c..dd237d9c5 100644
--- a/pkg/reconciler/gc/reconciler_test.go
+++ b/pkg/reconciler/gc/reconciler_test.go
@@ -32,7 +32,6 @@ import (
 	"knative.dev/pkg/logging"
 	"knative.dev/pkg/ptr"
 	pkgrec "knative.dev/pkg/reconciler"
-	apiconfig "knative.dev/serving/pkg/apis/config"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	servingclient "knative.dev/serving/pkg/client/injection/client/fake"
 	configreconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/configuration"
@@ -59,7 +58,6 @@ var revisionSpec = v1.RevisionSpec{
 
 func TestGCReconcile(t *testing.T) {
 	now := time.Now()
-	tenMinutesAgo := now.Add(-10 * time.Minute)
 
 	old := now.Add(-11 * time.Minute)
 	older := now.Add(-12 * time.Minute)
@@ -69,90 +67,11 @@ func TestGCReconcile(t *testing.T) {
 		ConfigStore: &testConfigStore{
 			config: &config.Config{
 				RevisionGC: &gc.Config{
-					// v1 settings
-					StaleRevisionCreateDelay:        5 * time.Minute,
-					StaleRevisionTimeout:            5 * time.Minute,
-					StaleRevisionMinimumGenerations: 2,
-
-					// v2 settings
 					RetainSinceCreateTime:     5 * time.Minute,
 					RetainSinceLastActiveTime: 5 * time.Minute,
 					MinNonActiveRevisions:     1,
 					MaxNonActiveRevisions:     gc.Disabled,
 				},
-				Features: &apiconfig.Features{
-					ResponsiveRevisionGC: apiconfig.Disabled,
-				},
-			},
-		}}
-
-	table := TableTest{{
-		Name: "delete oldest, keep two V1",
-		Objects: []runtime.Object{
-			cfg("keep-two", "foo", 5556,
-				WithLatestCreated("5556"),
-				WithLatestReady("5556"),
-				WithConfigObservedGen),
-			rev("keep-two", "foo", 5554, MarkRevisionReady,
-				WithRevName("5554"),
-				WithCreationTimestamp(oldest),
-				WithLastPinned(tenMinutesAgo)),
-			rev("keep-two", "foo", 5555, MarkRevisionReady,
-				WithRevName("5555"),
-				WithCreationTimestamp(older),
-				WithLastPinned(tenMinutesAgo)),
-			rev("keep-two", "foo", 5556, MarkRevisionReady,
-				WithRevName("5556"),
-				WithCreationTimestamp(old),
-				WithLastPinned(tenMinutesAgo)),
-		},
-		WantDeletes: []clientgotesting.DeleteActionImpl{{
-			ActionImpl: clientgotesting.ActionImpl{
-				Namespace: "foo",
-				Verb:      "delete",
-				Resource:  v1.SchemeGroupVersion.WithResource("revisions"),
-			},
-			Name: "5554",
-		}},
-		Key: "foo/keep-two",
-	}}
-
-	table.Test(t, MakeFactory(func(ctx context.Context, listers *Listers, cmw configmap.Watcher) controller.Reconciler {
-		r := &reconciler{
-			client:         servingclient.Get(ctx),
-			revisionLister: listers.GetRevisionLister(),
-		}
-		return configreconciler.NewReconciler(ctx, logging.FromContext(ctx),
-			servingclient.Get(ctx), listers.GetConfigurationLister(),
-			controller.GetEventRecorder(ctx), r, controllerOpts)
-	}))
-}
-
-func TestGCReconcileV2(t *testing.T) {
-	now := time.Now()
-
-	old := now.Add(-11 * time.Minute)
-	older := now.Add(-12 * time.Minute)
-	oldest := now.Add(-13 * time.Minute)
-
-	controllerOpts := controller.Options{
-		ConfigStore: &testConfigStore{
-			config: &config.Config{
-				RevisionGC: &gc.Config{
-					// v1 settings
-					StaleRevisionCreateDelay:        5 * time.Minute,
-					StaleRevisionTimeout:            5 * time.Minute,
-					StaleRevisionMinimumGenerations: 2,
-
-					// v2 settings
-					RetainSinceCreateTime:     5 * time.Minute,
-					RetainSinceLastActiveTime: 5 * time.Minute,
-					MinNonActiveRevisions:     1,
-					MaxNonActiveRevisions:     gc.Disabled,
-				},
-				Features: &apiconfig.Features{
-					ResponsiveRevisionGC: apiconfig.Enabled,
-				},
 			},
 		}}
 
diff --git a/pkg/reconciler/gc/v1/gc_test.go b/pkg/reconciler/gc/v1/gc_test.go
deleted file mode 100644
index daad61dac..000000000
--- a/pkg/reconciler/gc/v1/gc_test.go
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
-Copyright 2020 The Knative Authors
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package v1
-
-import (
-	"context"
-	"fmt"
-	"testing"
-	"time"
-
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/util/clock"
-	clientgotesting "k8s.io/client-go/testing"
-	duckv1 "knative.dev/pkg/apis/duck/v1"
-	"knative.dev/pkg/ptr"
-	pkgrec "knative.dev/pkg/reconciler"
-	v1 "knative.dev/serving/pkg/apis/serving/v1"
-	fakeservingclient "knative.dev/serving/pkg/client/injection/client/fake"
-	fakerevisioninformer "knative.dev/serving/pkg/client/injection/informers/serving/v1/revision/fake"
-	gcconfig "knative.dev/serving/pkg/gc"
-	"knative.dev/serving/pkg/reconciler/configuration/resources"
-	"knative.dev/serving/pkg/reconciler/gc/config"
-
-	_ "knative.dev/serving/pkg/client/injection/informers/serving/v1/configuration/fake"
-
-	. "knative.dev/pkg/reconciler/testing"
-	. "knative.dev/serving/pkg/testing/v1"
-)
-
-var revisionSpec = v1.RevisionSpec{
-	PodSpec: corev1.PodSpec{
-		Containers: []corev1.Container{{
-			Image: "busybox",
-		}},
-	},
-	TimeoutSeconds: ptr.Int64(60),
-}
-
-func TestCollect(t *testing.T) {
-	now := time.Now()
-	tenMinutesAgo := now.Add(-10 * time.Minute)
-
-	old := now.Add(-11 * time.Minute)
-	older := now.Add(-12 * time.Minute)
-	oldest := now.Add(-13 * time.Minute)
-
-	cfgMap := &config.Config{
-		RevisionGC: &gcconfig.Config{
-			StaleRevisionCreateDelay:        5 * time.Minute,
-			StaleRevisionTimeout:            5 * time.Minute,
-			StaleRevisionMinimumGenerations: 2,
-		},
-	}
-	ctx, _ := SetupFakeContext(t)
-	ctx = config.ToContext(ctx, cfgMap)
-
-	table := []struct {
-		name        string
-		cfg         *v1.Configuration
-		revs        []*v1.Revision
-		wantDeletes []clientgotesting.DeleteActionImpl
-	}{{
-		name: "delete oldest, keep two",
-		cfg: cfg("keep-two", "foo", 5556,
-			WithLatestCreated("5556"),
-			WithLatestReady("5556"),
-			WithConfigObservedGen),
-		revs: []*v1.Revision{
-			rev(ctx, "keep-two", "foo", 5554, MarkRevisionReady,
-				WithRevName("5554"),
-				WithCreationTimestamp(oldest),
-				WithLastPinned(tenMinutesAgo)),
-			rev(ctx, "keep-two", "foo", 5555, MarkRevisionReady,
-				WithRevName("5555"),
-				WithCreationTimestamp(older),
-				WithLastPinned(tenMinutesAgo)),
-			rev(ctx, "keep-two", "foo", 5556, MarkRevisionReady,
-				WithRevName("5556"),
-				WithCreationTimestamp(old),
-				WithLastPinned(tenMinutesAgo)),
-		},
-		wantDeletes: []clientgotesting.DeleteActionImpl{{
-			ActionImpl: clientgotesting.ActionImpl{
-				Namespace: "foo",
-				Verb:      "delete",
-				Resource:  v1.SchemeGroupVersion.WithResource("revisions"),
-			},
-			Name: "5554",
-		}},
-	}, {
-		name: "keep oldest when no lastPinned",
-		cfg: cfg("keep-no-last-pinned", "foo", 5556,
-			WithLatestCreated("5556"),
-			WithLatestReady("5556"),
-			WithConfigObservedGen),
-		revs: []*v1.Revision{
-			// No lastPinned so we will keep this.
-			rev(ctx, "keep-no-last-pinned", "foo", 5554, MarkRevisionReady,
-				WithRevName("5554"),
-				WithCreationTimestamp(oldest)),
-			rev(ctx, "keep-no-last-pinned", "foo", 5555, MarkRevisionReady,
-				WithRevName("5555"),
-				WithCreationTimestamp(older),
-				WithLastPinned(tenMinutesAgo)),
-			rev(ctx, "keep-no-last-pinned", "foo", 5556, MarkRevisionReady,
-				WithRevName("5556"),
-				WithCreationTimestamp(old),
-				WithLastPinned(tenMinutesAgo)),
-		},
-	}, {
-		name: "keep recent lastPinned",
-		cfg: cfg("keep-recent-last-pinned", "foo", 5556,
-			WithLatestCreated("5556"),
-			WithLatestReady("5556"),
-			WithConfigObservedGen),
-		revs: []*v1.Revision{
-			rev(ctx, "keep-recent-last-pinned", "foo", 5554, MarkRevisionReady,
-				WithRevName("5554"),
-				WithCreationTimestamp(oldest),
-				// This is an indication that things are still routing here.
-				WithLastPinned(now)),
-			rev(ctx, "keep-recent-last-pinned", "foo", 5555, MarkRevisionReady,
-				WithRevName("5555"),
-				WithCreationTimestamp(older),
-				WithLastPinned(tenMinutesAgo)),
-			rev(ctx, "keep-recent-last-pinned", "foo", 5556, MarkRevisionReady,
-				WithRevName("5556"),
-				WithCreationTimestamp(old),
-				WithLastPinned(tenMinutesAgo)),
-		},
-	}, {
-		name: "keep LatestReadyRevision",
-		cfg: cfg("keep-two", "foo", 5556,
-			WithLatestReady("5554"),
-			// This comes after 'WithLatestReady' so the
-			// Configuration's 'Ready' Status is 'Unknown'
-			WithLatestCreated("5556"),
-			WithConfigObservedGen),
-		revs: []*v1.Revision{
-			// Create a revision where the LatestReady is 5554, but LatestCreated is 5556.
-			// We should keep LatestReady even if it is old.
-			rev(ctx, "keep-two", "foo", 5554, MarkRevisionReady,
-				WithRevName("5554"),
-				WithCreationTimestamp(oldest),
-				WithLastPinned(tenMinutesAgo)),
-			rev(ctx, "keep-two", "foo", 5555, // Not Ready
-				WithRevName("5555"),
-				WithCreationTimestamp(older),
-				WithLastPinned(tenMinutesAgo)),
-			rev(ctx, "keep-two", "foo", 5556, // Not Ready
-				WithRevName("5556"),
-				WithCreationTimestamp(old),
-				WithLastPinned(tenMinutesAgo)),
-		},
-	}, {
-		name: "keep stale revision because of minimum generations",
-		cfg: cfg("keep-all", "foo", 5554,
-			// Don't set the latest ready revision here
-			// since those by default are always retained
-			WithLatestCreated("keep-all"),
-			WithConfigObservedGen),
-		revs: []*v1.Revision{
-			rev(ctx, "keep-all", "foo", 5554,
-				WithRevName("keep-all"),
-				WithCreationTimestamp(oldest),
-				WithLastPinned(tenMinutesAgo)),
-		},
-	}}
-
-	for _, test := range table {
-		t.Run(test.name, func(t *testing.T) {
-			ctx, _ = SetupFakeContext(t)
-			ctx = config.ToContext(ctx, cfgMap)
-			client := fakeservingclient.Get(ctx)
-
-			ri := fakerevisioninformer.Get(ctx)
-			for _, rev := range test.revs {
-				ri.Informer().GetIndexer().Add(rev)
-			}
-
-			recorderList := ActionRecorderList{client}
-
-			Collect(ctx, client, ri.Lister(), test.cfg)
-
-			actions, err := recorderList.ActionsByVerb()
-			if err != nil {
-				t.Errorf("Error capturing actions by verb: %q", err)
-			}
-
-			for i, want := range test.wantDeletes {
-				if i >= len(actions.Deletes) {
-					t.Errorf("Missing delete: %#v", want)
-					continue
-				}
-				got := actions.Deletes[i]
-				if got.GetName() != want.GetName() {
-					t.Errorf("Unexpected delete[%d]: %#v", i, got)
-				}
-			}
-			if got, want := len(actions.Deletes), len(test.wantDeletes); got > want {
-				for _, extra := range actions.Deletes[want:] {
-					t.Errorf("Extra delete: %s/%s", extra.GetNamespace(), extra.GetName())
-				}
-			}
-		})
-	}
-}
-
-func TestIsRevisionStale(t *testing.T) {
-	curTime := time.Now()
-	staleTime := curTime.Add(-10 * time.Minute)
-
-	tests := []struct {
-		name      string
-		rev       *v1.Revision
-		latestRev string
-		want      bool
-	}{{
-		name: "fresh revision that was never pinned",
-		rev: &v1.Revision{
-			ObjectMeta: metav1.ObjectMeta{
-				Name:              "myrev",
-				CreationTimestamp: metav1.NewTime(curTime),
-			},
-		},
-		want: false,
-	}, {
-		name: "stale revision that was never pinned w/ Ready status",
-		rev: &v1.Revision{
-			ObjectMeta: metav1.ObjectMeta{
-				Name:              "myrev",
-				CreationTimestamp: metav1.NewTime(staleTime),
-			},
-			Status: v1.RevisionStatus{
-				Status: duckv1.Status{
-					Conditions: duckv1.Conditions{{
-						Type:   v1.RevisionConditionReady,
-						Status: "True",
-					}},
-				},
-			},
-		},
-		want: false,
-	}, {
-		name: "stale revision that was never pinned w/o Ready status",
-		rev: &v1.Revision{
-			ObjectMeta: metav1.ObjectMeta{
-				Name:              "myrev",
-				CreationTimestamp: metav1.NewTime(staleTime),
-			},
-			Status: v1.RevisionStatus{
-				Status: duckv1.Status{
-					Conditions: duckv1.Conditions{{
-						Type:   v1.RevisionConditionReady,
-						Status: "Unknown",
-					}},
-				},
-			},
-		},
-		want: true,
-	}, {
-		name: "stale revision that was previously pinned",
-		rev: &v1.Revision{
-			ObjectMeta: metav1.ObjectMeta{
-				Name:              "myrev",
-				CreationTimestamp: metav1.NewTime(staleTime),
-				Annotations: map[string]string{
-					"serving.knative.dev/lastPinned": fmt.Sprint(staleTime.Unix()),
-				},
-			},
-		},
-		want: true,
-	}, {
-		name: "fresh revision that was previously pinned",
-		rev: &v1.Revision{
-			ObjectMeta: metav1.ObjectMeta{
-				Name:              "myrev",
-				CreationTimestamp: metav1.NewTime(staleTime),
-				Annotations: map[string]string{
-					"serving.knative.dev/lastPinned": fmt.Sprint(curTime.Unix()),
-				},
-			},
-		},
-		want: false,
-	}, {
-		name: "stale latest ready revision",
-		rev: &v1.Revision{
-			ObjectMeta: metav1.ObjectMeta{
-				Name:              "myrev",
-				CreationTimestamp: metav1.NewTime(staleTime),
-				Annotations: map[string]string{
-					"serving.knative.dev/lastPinned": fmt.Sprint(staleTime.Unix()),
-				},
-			},
-		},
-		latestRev: "myrev",
-		want:      false,
-	}}
-
-	cfgStore := testConfigStore{
-		config: &config.Config{
-			RevisionGC: &gcconfig.Config{
-				StaleRevisionCreateDelay:        5 * time.Minute,
-				StaleRevisionTimeout:            5 * time.Minute,
-				StaleRevisionMinimumGenerations: 2,
-			},
-		},
-	}
-	ctx := cfgStore.ToContext(context.Background())
-
-	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
-			cfg := &v1.Configuration{
-				Status: v1.ConfigurationStatus{
-					ConfigurationStatusFields: v1.ConfigurationStatusFields{
-						LatestReadyRevisionName: test.latestRev,
-					},
-				},
-			}
-
-			got := isRevisionStale(ctx, test.rev, cfg)
-
-			if got != test.want {
-				t.Errorf("IsRevisionStale = %v want: %v", got, test.want)
-			}
-		})
-	}
-}
-
-func cfg(name, namespace string, generation int64, co ...ConfigOption) *v1.Configuration {
-	c := &v1.Configuration{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:       name,
-			Namespace:  namespace,
-			Generation: generation,
-		},
-		Spec: v1.ConfigurationSpec{
-			Template: v1.RevisionTemplateSpec{
-				Spec: *revisionSpec.DeepCopy(),
-			},
-		},
-	}
-	for _, opt := range co {
-		opt(c)
-	}
-	c.SetDefaults(context.Background())
-	return c
-}
-
-func rev(ctx context.Context, name, namespace string, generation int64, ro ...RevisionOption) *v1.Revision {
-	config := cfg(name, namespace, generation)
-	rev := resources.MakeRevision(ctx, config, clock.RealClock{})
-	rev.SetDefaults(context.Background())
-
-	for _, opt := range ro {
-		opt(rev)
-	}
-	return rev
-}
-
-type testConfigStore struct {
-	config *config.Config
-}
-
-func (t *testConfigStore) ToContext(ctx context.Context) context.Context {
-	return config.ToContext(ctx, t.config)
-}
-
-var _ pkgrec.ConfigStore = (*testConfigStore)(nil)
diff --git a/pkg/reconciler/gc/v2/gc_test.go b/pkg/reconciler/gc/v2/gc_test.go
index 1126bac35..6c7eea2b1 100644
--- a/pkg/reconciler/gc/v2/gc_test.go
+++ b/pkg/reconciler/gc/v2/gc_test.go
@@ -18,7 +18,6 @@ package v2
 
 import (
 	"context"
-	"fmt"
 	"testing"
 	"time"
 
@@ -490,30 +489,6 @@ func TestIsRevisionStale(t *testing.T) {
 			},
 		},
 		want: false,
-	}, {
-		name: "stale pinned time",
-		rev: &v1.Revision{
-			ObjectMeta: metav1.ObjectMeta{
-				Name:              "myrev",
-				CreationTimestamp: metav1.NewTime(staleTime),
-				Annotations: map[string]string{
-					"serving.knative.dev/lastPinned": fmt.Sprint(staleTime.Unix()),
-				},
-			},
-		},
-		want: true,
-	}, {
-		name: "fresh pinned time",
-		rev: &v1.Revision{
-			ObjectMeta: metav1.ObjectMeta{
-				Name:              "myrev",
-				CreationTimestamp: metav1.NewTime(staleTime),
-				Annotations: map[string]string{
-					"serving.knative.dev/lastPinned": fmt.Sprint(curTime.Unix()),
-				},
-			},
-		},
-		want: false,
 	}, {
 		name: "stale revisionStateModified",
 		rev: &v1.Revision{
diff --git a/pkg/reconciler/labeler/labeler_both_test.go b/pkg/reconciler/labeler/labeler_both_test.go
deleted file mode 100644
index 4cd6242a7..000000000
--- a/pkg/reconciler/labeler/labeler_both_test.go
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
-Copyright 2020 The Knative Authors
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package labeler
-
-import (
-	"context"
-	"testing"
-
-	// Inject the fake informers that this controller needs.
-	servingclient "knative.dev/serving/pkg/client/injection/client/fake"
-	_ "knative.dev/serving/pkg/client/injection/informers/serving/v1/configuration/fake"
-	_ "knative.dev/serving/pkg/client/injection/informers/serving/v1/revision/fake"
-	_ "knative.dev/serving/pkg/client/injection/informers/serving/v1/route/fake"
-
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/runtime"
-	"k8s.io/apimachinery/pkg/util/clock"
-	clientgotesting "k8s.io/client-go/testing"
-	routereconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/route"
-
-	"knative.dev/pkg/configmap"
-	"knative.dev/pkg/controller"
-	"knative.dev/pkg/logging"
-	cfgmap "knative.dev/serving/pkg/apis/config"
-	v1 "knative.dev/serving/pkg/apis/serving/v1"
-
-	. "knative.dev/pkg/reconciler/testing"
-	labelerv1 "knative.dev/serving/pkg/reconciler/labeler/v1"
-	labelerv2 "knative.dev/serving/pkg/reconciler/labeler/v2"
-	. "knative.dev/serving/pkg/reconciler/testing/v1"
-	. "knative.dev/serving/pkg/testing/v1"
-)
-
-func TestV2ReconcileAllowed(t *testing.T) {
-	now := metav1.Now()
-	fakeTime := now.Time
-
-	table := TableTest{{
-		Name: "change configurations",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Allowed),
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "config-change", "new-config", WithRouteFinalizer),
-
-			rev("default", "old-config",
-				WithRevisionLabel("serving.knative.dev/route", "config-change"),
-				WithRevisionAnn("serving.knative.dev/routes", "config-change"),
-				WithRoutingState(v1.RoutingStateActive)),
-
-			simpleConfig("default", "new-config"),
-			rev("default", "new-config"),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			// v1 sync
-			patchRemoveLabel("default", rev("default", "old-config").Name,
-				"serving.knative.dev/route"),
-			patchAddLabel("default", rev("default", "new-config").Name, "serving.knative.dev/route", "config-change"),
-			patchAddLabel("default", "new-config", "serving.knative.dev/route", "config-change"),
-
-			// v2 sync
-			patchRemoveRouteAndServingStateLabel("default", rev("default", "old-config").Name, now.Time),
-			patchAddRouteAndServingStateLabel(
-				"default", rev("default", "new-config").Name, "config-change", now.Time),
-			patchAddRouteAnn("default", "new-config", "config-change"),
-		},
-		Key: "default/config-change",
-	}, {
-		Name: "failure while removing a rev annotation should return an error",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Allowed),
-		// Induce a failure during patching
-		WantErr: true,
-		WithReactors: []clientgotesting.ReactionFunc{
-			InduceFailure("patch", "revisions"),
-		},
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "add-label-failure", "new-config", WithRouteFinalizer),
-			simpleConfig("default", "new-config",
-				WithConfigLabel("serving.knative.dev/route", "add-label-failure")),
-			rev("default", "new-config"),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchAddLabel("default", rev("default", "new-config").Name,
-				"serving.knative.dev/route", "add-label-failure"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeWarning, "InternalError",
-				`failed to add route label to /, Kind= "new-config-dbnfd": inducing failure for patch revisions`),
-		},
-		Key: "default/add-label-failure",
-	}}
-
-	table.Test(t, MakeFactory(func(ctx context.Context, listers *Listers, cmw configmap.Watcher) controller.Reconciler {
-		clock := clock.NewFakeClock(fakeTime)
-		client := servingclient.Get(ctx)
-		cLister := listers.GetConfigurationLister()
-		cIndexer := listers.IndexerFor(&v1.Configuration{})
-		rLister := listers.GetRevisionLister()
-		rIndexer := listers.IndexerFor(&v1.Revision{})
-		r := &Reconciler{
-			caccV1: labelerv1.NewConfigurationAccessor(client, &NullTracker{}, cLister),
-			caccV2: labelerv2.NewConfigurationAccessor(client, &NullTracker{}, cLister, cIndexer, clock),
-			raccV1: labelerv1.NewRevisionAccessor(client, &NullTracker{}, rLister),
-			raccV2: labelerv2.NewRevisionAccessor(client, &NullTracker{}, rLister, rIndexer, clock),
-		}
-
-		return routereconciler.NewReconciler(ctx, logging.FromContext(ctx), servingclient.Get(ctx),
-			listers.GetRouteLister(), controller.GetEventRecorder(ctx), r)
-	}))
-}
diff --git a/pkg/reconciler/labeler/labelerv1_test.go b/pkg/reconciler/labeler/labelerv1_test.go
deleted file mode 100644
index ad0337a7a..000000000
--- a/pkg/reconciler/labeler/labelerv1_test.go
+++ /dev/null
@@ -1,377 +0,0 @@
-/*
-Copyright 2020 The Knative Authors
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package labeler
-
-import (
-	"context"
-	"fmt"
-	"testing"
-
-	// Inject the fake informers that this controller needs.
-	servingclient "knative.dev/serving/pkg/client/injection/client/fake"
-	_ "knative.dev/serving/pkg/client/injection/informers/serving/v1/configuration/fake"
-	_ "knative.dev/serving/pkg/client/injection/informers/serving/v1/revision/fake"
-	_ "knative.dev/serving/pkg/client/injection/informers/serving/v1/route/fake"
-
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/runtime"
-	"k8s.io/apimachinery/pkg/util/clock"
-	clientgotesting "k8s.io/client-go/testing"
-	routereconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/route"
-
-	"knative.dev/pkg/configmap"
-	"knative.dev/pkg/controller"
-	"knative.dev/pkg/logging"
-	cfgmap "knative.dev/serving/pkg/apis/config"
-	v1 "knative.dev/serving/pkg/apis/serving/v1"
-
-	. "knative.dev/pkg/reconciler/testing"
-	labelerv1 "knative.dev/serving/pkg/reconciler/labeler/v1"
-	labelerv2 "knative.dev/serving/pkg/reconciler/labeler/v2"
-	. "knative.dev/serving/pkg/reconciler/testing/v1"
-	. "knative.dev/serving/pkg/testing/v1"
-)
-
-func TestV1Reconcile(t *testing.T) {
-	now := metav1.Now()
-	fakeTime := now.Time
-
-	table := TableTest{{
-		Name: "bad workqueue key",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		// Make sure Reconcile handles bad keys.
-		Key: "too/many/parts",
-	}, {
-		Name: "key not found",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		// Make sure Reconcile handles good keys that don't exist.
-		Key: "foo/not-found",
-	}, {
-		Name: "label runLatest configuration",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "first-reconcile", "the-config"),
-			simpleConfig("default", "the-config"),
-			rev("default", "the-config"),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchAddFinalizerAction("default", "first-reconcile"),
-			patchAddLabel("default", rev("default", "the-config").Name,
-				"serving.knative.dev/route", "first-reconcile"),
-			patchAddLabel("default", "the-config", "serving.knative.dev/route", "first-reconcile"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeNormal, "FinalizerUpdate", "Updated %q finalizers", "first-reconcile"),
-		},
-		Key: "default/first-reconcile",
-	}, {
-		Name: "label pinned revision",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			pinnedRoute("default", "pinned-revision", "the-revision"),
-			simpleConfig("default", "the-config"),
-			rev("default", "the-config"),
-			rev("default", "the-config", WithRevName("the-revision")),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchAddFinalizerAction("default", "pinned-revision"),
-			patchAddLabel("default", "the-revision",
-				"serving.knative.dev/route", "pinned-revision"),
-			patchAddLabel("default", "the-config",
-				"serving.knative.dev/route", "pinned-revision"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeNormal, "FinalizerUpdate", "Updated %q finalizers", "pinned-revision"),
-		},
-		Key: "default/pinned-revision",
-	}, {
-		Name: "steady state",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "steady-state", "the-config", WithRouteFinalizer),
-			simpleConfig("default", "the-config",
-				WithConfigLabel("serving.knative.dev/route", "steady-state")),
-			rev("default", "the-config",
-				WithRevisionLabel("serving.knative.dev/route", "steady-state")),
-		},
-		Key: "default/steady-state",
-	}, {
-		Name: "no ready revision",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "no-ready-revision", "the-config", WithStatusTraffic()),
-			simpleConfig("default", "the-config", WithLatestReady("")),
-			rev("default", "the-config"),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchAddFinalizerAction("default", "no-ready-revision"),
-			patchAddLabel("default", rev("default", "the-config").Name,
-				"serving.knative.dev/route", "no-ready-revision"),
-			patchAddLabel("default", "the-config",
-				"serving.knative.dev/route", "no-ready-revision"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeNormal, "FinalizerUpdate", "Updated %q finalizers", "no-ready-revision"),
-		},
-		Key: "default/no-ready-revision",
-	}, {
-		Name: "transitioning route",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "transitioning-route", "old", WithRouteFinalizer,
-				WithSpecTraffic(configTraffic("new"))),
-			simpleConfig("default", "old",
-				WithConfigLabel("serving.knative.dev/route", "transitioning-route")),
-			rev("default", "old",
-				WithRevisionLabel("serving.knative.dev/route", "transitioning-route")),
-			simpleConfig("default", "new"),
-			rev("default", "new"),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchAddLabel("default", rev("default", "new").Name,
-				"serving.knative.dev/route", "transitioning-route"),
-			patchAddLabel("default", "new",
-				"serving.knative.dev/route", "transitioning-route"),
-		},
-		Key: "default/transitioning-route",
-	}, {
-		Name: "failure adding label (revision)",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		// Induce a failure during patching
-		WantErr: true,
-		WithReactors: []clientgotesting.ReactionFunc{
-			InduceFailure("patch", "revisions"),
-		},
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "add-label-failure", "the-config", WithRouteFinalizer),
-			simpleConfig("default", "the-config"),
-			rev("default", "the-config"),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchAddLabel("default", rev("default", "the-config").Name,
-				"serving.knative.dev/route", "add-label-failure"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeWarning, "InternalError",
-				`failed to add route label to /, Kind= "the-config-dbnfd": inducing failure for patch revisions`),
-		},
-		Key: "default/add-label-failure",
-	}, {
-		Name: "failure adding label (configuration)",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		// Induce a failure during patching
-		WantErr: true,
-		WithReactors: []clientgotesting.ReactionFunc{
-			InduceFailure("patch", "configurations"),
-		},
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "add-label-failure", "the-config", WithRouteFinalizer),
-			simpleConfig("default", "the-config"),
-			rev("default", "the-config",
-				WithRevisionLabel("serving.knative.dev/route", "add-label-failure")),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchAddLabel("default", "the-config", "serving.knative.dev/route", "add-label-failure"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeWarning, "InternalError",
-				`failed to add route label to /, Kind= "the-config": inducing failure for patch configurations`),
-		},
-		Key: "default/add-label-failure",
-	}, {
-		Name:    "label config with incorrect label",
-		Ctx:     setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		WantErr: true,
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "the-route", "the-config", WithRouteFinalizer),
-			simpleConfig("default", "the-config",
-				WithConfigLabel("serving.knative.dev/route", "another-route")),
-			rev("default", "the-config",
-				WithRevisionLabel("serving.knative.dev/route", "another-route")),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeWarning, "InternalError",
-				`/, Kind= "the-config-dbnfd" is already in use by "another-route", and cannot be used by "the-route"`),
-		},
-		Key: "default/the-route",
-	}, {
-		Name: "change configurations",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "config-change", "new-config", WithRouteFinalizer),
-			simpleConfig("default", "old-config",
-				WithConfigLabel("serving.knative.dev/route", "config-change")),
-			rev("default", "old-config",
-				WithRevisionLabel("serving.knative.dev/route", "config-change")),
-			simpleConfig("default", "new-config"),
-			rev("default", "new-config"),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchRemoveLabel("default", rev("default", "old-config").Name,
-				"serving.knative.dev/route"),
-			patchRemoveLabel("default", "old-config", "serving.knative.dev/route"),
-			patchAddLabel("default", rev("default", "new-config").Name,
-				"serving.knative.dev/route", "config-change"),
-			patchAddLabel("default", "new-config", "serving.knative.dev/route", "config-change"),
-		},
-		Key: "default/config-change",
-	}, {
-		Name: "update configuration",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "config-update", "the-config", WithRouteFinalizer),
-			simpleConfig("default", "the-config",
-				WithLatestCreated("the-config-ecoge"),
-				WithConfigLabel("serving.knative.dev/route", "config-update")),
-			rev("default", "the-config",
-				WithRevisionLabel("serving.knative.dev/route", "config-update")),
-			rev("default", "the-config",
-				WithRevName("the-config-ecoge")),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchAddLabel("default", "the-config-ecoge",
-				"serving.knative.dev/route", "config-update"),
-		},
-		Key: "default/config-update",
-	}, {
-		Name: "delete route",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "delete-route", "the-config", WithRouteFinalizer, WithRouteDeletionTimestamp(&now)),
-			simpleConfig("default", "the-config",
-				WithConfigLabel("serving.knative.dev/route", "delete-route")),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchRemoveLabel("default", "the-config", "serving.knative.dev/route"),
-			patchRemoveFinalizerAction("default", "delete-route"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeNormal, "FinalizerUpdate", `Updated "delete-route" finalizers`),
-		},
-		Key: "default/delete-route",
-	}, {
-		Name:    "delete route failure",
-		Ctx:     setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		WantErr: true,
-		WithReactors: []clientgotesting.ReactionFunc{
-			InduceFailure("patch", "configurations"),
-		},
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "delete-route", "the-config", WithRouteFinalizer, WithRouteDeletionTimestamp(&now)),
-			simpleConfig("default", "the-config",
-				WithConfigLabel("serving.knative.dev/route", "delete-route")),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchRemoveLabel("default", "the-config", "serving.knative.dev/route"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeWarning, "InternalError",
-				`failed to remove route label to /, Kind= "the-config": inducing failure for patch configurations`),
-		},
-		Key: "default/delete-route",
-	}, {
-		Name: "failure while removing a cfg annotation should return an error",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		// Induce a failure during patching
-		WantErr: true,
-		WithReactors: []clientgotesting.ReactionFunc{
-			InduceFailure("patch", "configurations"),
-		},
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "delete-label-failure", "new-config", WithRouteFinalizer),
-			simpleConfig("default", "old-config",
-				WithConfigLabel("serving.knative.dev/route", "delete-label-failure")),
-			simpleConfig("default", "new-config",
-				WithConfigLabel("serving.knative.dev/route", "delete-label-failure")),
-			rev("default", "new-config",
-				WithRevisionLabel("serving.knative.dev/route", "delete-label-failure")),
-			rev("default", "old-config"),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchRemoveLabel("default", "old-config", "serving.knative.dev/route"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeWarning, "InternalError",
-				`failed to remove route label to /, Kind= "old-config": inducing failure for patch configurations`),
-		},
-		Key: "default/delete-label-failure",
-	}, {
-		Name: "failure while removing a rev annotation should return an error",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		// Induce a failure during patching
-		WantErr: true,
-		WithReactors: []clientgotesting.ReactionFunc{
-			InduceFailure("patch", "revisions"),
-		},
-		Objects: []runtime.Object{
-			simpleRunLatest("default", "delete-label-failure", "new-config", WithRouteFinalizer),
-			simpleConfig("default", "old-config",
-				WithConfigLabel("serving.knative.dev/route", "delete-label-failure")),
-			simpleConfig("default", "new-config",
-				WithConfigLabel("serving.knative.dev/route", "delete-label-failure")),
-			rev("default", "new-config",
-				WithRevisionLabel("serving.knative.dev/route", "delete-label-failure")),
-			rev("default", "old-config",
-				WithRevisionLabel("serving.knative.dev/route", "delete-label-failure")),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchRemoveLabel("default", rev("default", "old-config").Name,
-				"serving.knative.dev/route"),
-		},
-		WantEvents: []string{
-			Eventf(corev1.EventTypeWarning, "InternalError",
-				`failed to remove route label to /, Kind= "old-config-dbnfd": inducing failure for patch revisions`),
-		},
-		Key: "default/delete-label-failure",
-	}}
-
-	table.Test(t, MakeFactory(func(ctx context.Context, listers *Listers, cmw configmap.Watcher) controller.Reconciler {
-		ctx = setResponsiveGCFeature(ctx, cfgmap.Disabled)
-		clock := clock.NewFakeClock(fakeTime)
-		client := servingclient.Get(ctx)
-		cLister := listers.GetConfigurationLister()
-		cIndexer := listers.IndexerFor(&v1.Configuration{})
-		rLister := listers.GetRevisionLister()
-		rIndexer := listers.IndexerFor(&v1.Revision{})
-		r := &Reconciler{
-			caccV1: labelerv1.NewConfigurationAccessor(client, &NullTracker{}, cLister),
-			caccV2: labelerv2.NewConfigurationAccessor(client, &NullTracker{}, cLister, cIndexer, clock),
-			raccV1: labelerv1.NewRevisionAccessor(client, &NullTracker{}, rLister),
-			raccV2: labelerv2.NewRevisionAccessor(client, &NullTracker{}, rLister, rIndexer, clock),
-		}
-
-		return routereconciler.NewReconciler(ctx, logging.FromContext(ctx), servingclient.Get(ctx),
-			listers.GetRouteLister(), controller.GetEventRecorder(ctx), r)
-	}))
-}
-
-func patchRemoveLabel(namespace, name, key string) clientgotesting.PatchActionImpl {
-	return clientgotesting.PatchActionImpl{
-		Name:       name,
-		ActionImpl: clientgotesting.ActionImpl{Namespace: namespace},
-		Patch:      []byte(fmt.Sprintf(`{"metadata":{"labels":{%q:null}}}`, key)),
-	}
-}
-
-func patchAddLabel(namespace, name, key, value string) clientgotesting.PatchActionImpl {
-	return clientgotesting.PatchActionImpl{
-		Name:       name,
-		ActionImpl: clientgotesting.ActionImpl{Namespace: namespace},
-		Patch:      []byte(fmt.Sprintf(`{"metadata":{"labels":{%q:%q}}}`, key, value)),
-	}
-}
diff --git a/pkg/reconciler/labeler/labelerv2_test.go b/pkg/reconciler/labeler/labelerv2_test.go
index fceea3bd9..796afa0fa 100644
--- a/pkg/reconciler/labeler/labelerv2_test.go
+++ b/pkg/reconciler/labeler/labelerv2_test.go
@@ -46,8 +46,6 @@ import (
 	autoscalercfg "knative.dev/serving/pkg/autoscaler/config"
 
 	. "knative.dev/pkg/reconciler/testing"
-	"knative.dev/serving/pkg/reconciler/configuration/config"
-	labelerv1 "knative.dev/serving/pkg/reconciler/labeler/v1"
 	labelerv2 "knative.dev/serving/pkg/reconciler/labeler/v2"
 	. "knative.dev/serving/pkg/reconciler/testing/v1"
 	. "knative.dev/serving/pkg/testing/v1"
@@ -59,17 +57,14 @@ func TestV2Reconcile(t *testing.T) {
 
 	table := TableTest{{
 		Name: "bad workqueue key",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		// Make sure Reconcile handles bad keys.
 		Key: "too/many/parts",
 	}, {
 		Name: "key not found",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		// Make sure Reconcile handles good keys that don't exist.
 		Key: "foo/not-found",
 	}, {
 		Name: "label runLatest configuration",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			simpleRunLatest("default", "first-reconcile", "the-config"),
 			simpleConfig("default", "the-config"),
@@ -87,7 +82,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/first-reconcile",
 	}, {
 		Name: "label pinned revision",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			pinnedRoute("default", "pinned-revision", "the-revision"),
 			simpleConfig("default", "the-config"),
@@ -107,7 +101,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/pinned-revision",
 	}, {
 		Name: "steady state",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			simpleRunLatest("default", "steady-state", "the-config", WithRouteFinalizer),
 			simpleConfig("default", "the-config",
@@ -120,7 +113,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/steady-state",
 	}, {
 		Name: "no ready revision",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			simpleRunLatest("default", "no-ready-revision", "the-config", WithStatusTraffic()),
 			simpleConfig("default", "the-config", WithLatestReady("")),
@@ -139,7 +131,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/no-ready-revision",
 	}, {
 		Name: "transitioning route",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			simpleRunLatest("default", "transitioning-route", "old", WithRouteFinalizer,
 				WithSpecTraffic(configTraffic("new"))),
@@ -160,7 +151,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/transitioning-route",
 	}, {
 		Name: "failure adding annotation (revision)",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		// Induce a failure during patching
 		WantErr: true,
 		WithReactors: []clientgotesting.ReactionFunc{
@@ -182,7 +172,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/add-label-failure",
 	}, {
 		Name: "failure adding annotation (configuration)",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		// Induce a failure during patching
 		WantErr: true,
 		WithReactors: []clientgotesting.ReactionFunc{
@@ -206,7 +195,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/add-label-failure",
 	}, {
 		Name: "delete route existing ann",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			simpleRunLatest("default", "delete-route", "the-config", WithRouteFinalizer, WithRouteDeletionTimestamp(&now)),
 			simpleConfig("default", "the-config",
@@ -222,7 +210,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/delete-route",
 	}, {
 		Name: "change configurations",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			simpleRunLatest("default", "config-change", "new-config", WithRouteFinalizer),
 			simpleConfig("default", "old-config",
@@ -243,7 +230,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/config-change",
 	}, {
 		Name: "update configuration",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			simpleRunLatest("default", "config-update", "the-config", WithRouteFinalizer),
 			simpleConfig("default", "the-config",
@@ -262,7 +248,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/config-update",
 	}, {
 		Name: "delete route",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		Objects: []runtime.Object{
 			simpleRunLatest("default", "delete-route", "the-config", WithRouteFinalizer, WithRouteDeletionTimestamp(&now)),
 			simpleConfig("default", "the-config",
@@ -278,7 +263,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/delete-route",
 	}, {
 		Name:    "delete route failure",
-		Ctx:     setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		WantErr: true,
 		WithReactors: []clientgotesting.ReactionFunc{
 			InduceFailure("patch", "configurations"),
@@ -298,7 +282,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/delete-route",
 	}, {
 		Name: "failure while removing a cfg annotation should return an error",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		// Induce a failure during patching
 		WantErr: true,
 		WithReactors: []clientgotesting.ReactionFunc{
@@ -326,7 +309,6 @@ func TestV2Reconcile(t *testing.T) {
 		Key: "default/delete-label-failure",
 	}, {
 		Name: "failure while removing a rev annotation should return an error",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
 		// Induce a failure during patching
 		WantErr: true,
 		WithReactors: []clientgotesting.ReactionFunc{
@@ -362,9 +344,7 @@ func TestV2Reconcile(t *testing.T) {
 		rLister := listers.GetRevisionLister()
 		rIndexer := listers.IndexerFor(&v1.Revision{})
 		r := &Reconciler{
-			caccV1: labelerv1.NewConfigurationAccessor(client, &NullTracker{}, cLister),
 			caccV2: labelerv2.NewConfigurationAccessor(client, &NullTracker{}, cLister, cIndexer, clock),
-			raccV1: labelerv1.NewRevisionAccessor(client, &NullTracker{}, rLister),
 			raccV2: labelerv2.NewRevisionAccessor(client, &NullTracker{}, rLister, rIndexer, clock),
 		}
 
@@ -534,9 +514,3 @@ func TestNew(t *testing.T) {
 		t.Fatal("Expected NewController to return a non-nil value")
 	}
 }
-
-func setResponsiveGCFeature(ctx context.Context, flag cfgmap.Flag) context.Context {
-	c := config.FromContextOrDefaults(ctx)
-	c.Features.ResponsiveRevisionGC = flag
-	return config.ToContext(ctx, c)
-}
diff --git a/pkg/reconciler/revision/resources/imagecache_test.go b/pkg/reconciler/revision/resources/imagecache_test.go
index dc0345f4e..a1155a972 100644
--- a/pkg/reconciler/revision/resources/imagecache_test.go
+++ b/pkg/reconciler/revision/resources/imagecache_test.go
@@ -43,8 +43,7 @@ func TestMakeImageCache(t *testing.T) {
 				Namespace: "foo",
 				Name:      "bar",
 				Annotations: map[string]string{
-					"a":                                     "b",
-					serving.RevisionLastPinnedAnnotationKey: "c",
+					"a": "b",
 				},
 				UID: "1234",
 			},
@@ -98,8 +97,7 @@ func TestMakeImageCache(t *testing.T) {
 				Namespace: "foo",
 				Name:      "bar",
 				Annotations: map[string]string{
-					"a":                                     "b",
-					serving.RevisionLastPinnedAnnotationKey: "c",
+					"a": "b",
 				},
 				UID: "1234",
 			},
@@ -161,8 +159,7 @@ func TestMakeImageCache(t *testing.T) {
 				Namespace: "foo",
 				Name:      "bar",
 				Annotations: map[string]string{
-					"a":                                     "b",
-					serving.RevisionLastPinnedAnnotationKey: "c",
+					"a": "b",
 				},
 				UID: "1234",
 			},
diff --git a/pkg/reconciler/revision/resources/pa_test.go b/pkg/reconciler/revision/resources/pa_test.go
index 88ec41f03..a1290ebb1 100644
--- a/pkg/reconciler/revision/resources/pa_test.go
+++ b/pkg/reconciler/revision/resources/pa_test.go
@@ -44,11 +44,10 @@ func TestMakePA(t *testing.T) {
 					Name:      "bar",
 					UID:       "1234",
 					Labels: map[string]string{
-						serving.RouteLabelKey: "some-route",
+						serving.RoutingStateLabelKey: "active",
 					},
 					Annotations: map[string]string{
-						"a":                                     "b",
-						serving.RevisionLastPinnedAnnotationKey: "timeless",
+						"a": "b",
 					},
 				},
 				Spec: v1.RevisionSpec{
@@ -260,7 +259,7 @@ func TestMakePA(t *testing.T) {
 					Name:      "robin",
 					UID:       "4321",
 					Labels: map[string]string{
-						serving.RouteLabelKey: "asdf",
+						serving.RoutingStateLabelKey: "active",
 					},
 				},
 				Spec: v1.RevisionSpec{
diff --git a/pkg/reconciler/revision/table_test.go b/pkg/reconciler/revision/table_test.go
index b7d821d89..5f11ff0db 100644
--- a/pkg/reconciler/revision/table_test.go
+++ b/pkg/reconciler/revision/table_test.go
@@ -38,7 +38,6 @@ import (
 	tracingconfig "knative.dev/pkg/tracing/config"
 	asv1a1 "knative.dev/serving/pkg/apis/autoscaling/v1alpha1"
 	defaultconfig "knative.dev/serving/pkg/apis/config"
-	"knative.dev/serving/pkg/apis/serving"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	"knative.dev/serving/pkg/autoscaler/config/autoscalerconfig"
 	servingclient "knative.dev/serving/pkg/client/injection/client"
@@ -387,7 +386,7 @@ func TestReconcile(t *testing.T) {
 		Objects: []runtime.Object{
 			Revision("foo", "fix-mutated-pa",
 				WithK8sServiceName("ill-follow-the-sun"), WithLogURL, MarkRevisionReady,
-				WithRevisionLabel(serving.RouteLabelKey, "foo")),
+				WithRoutingState(v1.RoutingStateActive)),
 			pa("foo", "fix-mutated-pa", WithProtocolType(networking.ProtocolH2C),
 				WithTraffic, WithPASKSReady, WithScaleTargetInitialized, WithReachabilityReachable,
 				WithPAStatusService("fix-mutated-pa")),
@@ -400,7 +399,7 @@ func TestReconcile(t *testing.T) {
 				// When our reconciliation has to change the service
 				// we should see the following mutations to status.
 				WithK8sServiceName("fix-mutated-pa"),
-				WithRevisionLabel(serving.RouteLabelKey, "foo"), WithLogURL, MarkRevisionReady,
+				WithRoutingState(v1.RoutingStateActive), WithLogURL, MarkRevisionReady,
 				withDefaultContainerStatuses()),
 		}},
 		WantUpdates: []clientgotesting.UpdateActionImpl{{
diff --git a/pkg/reconciler/route/config/store_test.go b/pkg/reconciler/route/config/store_test.go
index 9de536ff2..c9b7b89d3 100644
--- a/pkg/reconciler/route/config/store_test.go
+++ b/pkg/reconciler/route/config/store_test.go
@@ -19,7 +19,6 @@ package config
 import (
 	"context"
 	"testing"
-	"time"
 
 	"github.com/google/go-cmp/cmp"
 	network "knative.dev/networking/pkg"
@@ -62,19 +61,6 @@ func TestStoreLoadWithContext(t *testing.T) {
 			t.Error("Unexpected controller config (-want, +got):", diff)
 		}
 	})
-
-	t.Run("gc invalid timeout", func(t *testing.T) {
-		gcConfig.Data["stale-revision-timeout"] = "1h"
-		expected, err := gc.NewConfigFromConfigMapFunc(ctx)(gcConfig)
-
-		if err != nil {
-			t.Error("Got error parsing gc config with invalid timeout:", err)
-		}
-
-		if expected.StaleRevisionTimeout != 15*time.Hour {
-			t.Errorf("Expected revision timeout of %v, got %v", 15*time.Hour, expected.StaleRevisionTimeout)
-		}
-	})
 }
 
 func TestStoreLoadWithContextOrDefaults(t *testing.T) {
diff --git a/pkg/reconciler/route/domains/domains_test.go b/pkg/reconciler/route/domains/domains_test.go
index 363fc0dcb..6cbcb39e7 100644
--- a/pkg/reconciler/route/domains/domains_test.go
+++ b/pkg/reconciler/route/domains/domains_test.go
@@ -19,7 +19,6 @@ package domains
 import (
 	"context"
 	"testing"
-	"time"
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
@@ -30,7 +29,6 @@ import (
 	network "knative.dev/networking/pkg"
 	"knative.dev/serving/pkg/apis/serving"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
-	"knative.dev/serving/pkg/gc"
 	"knative.dev/serving/pkg/reconciler/route/config"
 )
 
@@ -48,9 +46,6 @@ func testConfig() *config.Config {
 			DefaultIngressClass: "ingress-class-foo",
 			DomainTemplate:      network.DefaultDomainTemplate,
 		},
-		GC: &gc.Config{
-			StaleRevisionLastpinnedDebounce: 1 * time.Minute,
-		},
 	}
 }
 
diff --git a/pkg/reconciler/route/reconcile_resources_test.go b/pkg/reconciler/route/reconcile_resources_test.go
index e0f3426bf..b227c0722 100644
--- a/pkg/reconciler/route/reconcile_resources_test.go
+++ b/pkg/reconciler/route/reconcile_resources_test.go
@@ -18,9 +18,7 @@ package route
 
 import (
 	"context"
-	"errors"
 	"testing"
-	"time"
 
 	"github.com/google/go-cmp/cmp"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -29,11 +27,9 @@ import (
 	netv1alpha1 "knative.dev/networking/pkg/apis/networking/v1alpha1"
 	fakeingressinformer "knative.dev/networking/pkg/client/injection/informers/networking/v1alpha1/ingress/fake"
 	"knative.dev/pkg/ptr"
-	"knative.dev/serving/pkg/apis/serving"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	fakeservingclient "knative.dev/serving/pkg/client/injection/client/fake"
 	fakerevisioninformer "knative.dev/serving/pkg/client/injection/informers/serving/v1/revision/fake"
-	"knative.dev/serving/pkg/gc"
 	"knative.dev/serving/pkg/reconciler/route/config"
 	"knative.dev/serving/pkg/reconciler/route/traffic"
 
@@ -90,85 +86,14 @@ func TestReconcileIngressUpdate(t *testing.T) {
 	}
 }
 
-func TestReconcileTargetValidRevision(t *testing.T) {
-	var reconciler *Reconciler
-	ctx, _, _, _, cancel := newTestSetup(t, func(r *Reconciler) {
-		reconciler = r
-	})
-	defer cancel()
-
-	r := Route("test-ns", "test-route", WithRouteLabel(map[string]string{"route": "test-route"}))
-	rev := newTestRevision(r.Namespace, "revision")
-	tc := traffic.Config{Targets: map[string]traffic.RevisionTargets{
-		traffic.DefaultTarget: {{
-			TrafficTarget: v1.TrafficTarget{
-				RevisionName: "revision",
-				Percent:      ptr.Int64(100),
-			},
-		}}}}
-
-	ctx = config.ToContext(ctx, &config.Config{
-		GC: &gc.Config{
-			StaleRevisionLastpinnedDebounce: time.Minute,
-		},
-	})
-
-	fakeservingclient.Get(ctx).ServingV1().Revisions(r.Namespace).Create(ctx, rev, metav1.CreateOptions{})
-	fakerevisioninformer.Get(ctx).Informer().GetIndexer().Add(rev)
-
-	// Get timestamp before reconciling, so that we can compare this to the last pinned timestamp
-	// after reconciliation
-	beforeTimestamp, err := getLastPinnedTimestamp(t, rev)
-	if err != nil {
-		t.Fatal("Error getting last pinned:", err)
-	}
-
-	if err = reconciler.reconcileTargetRevisions(updateContext(ctx), &tc, r); err != nil {
-		t.Fatal("Error reconciling target revisions:", err)
-	}
-
-	// Verify last pinned annotation is updated correctly
-	newRev, err := fakeservingclient.Get(ctx).ServingV1().Revisions(r.Namespace).Get(ctx, rev.Name, metav1.GetOptions{})
-	if err != nil {
-		t.Fatal("Error getting revision:", err)
-	}
-	afterTimestamp, err := getLastPinnedTimestamp(t, newRev)
-	if err != nil {
-		t.Fatal("Error getting last pinned timestamps:", err)
-	}
-	if beforeTimestamp == afterTimestamp {
-		t.Fatal("The last pinned timestamp is not updated")
-	}
-}
-
 func TestReconcileRevisionTargetDoesNotExist(t *testing.T) {
-	var reconciler *Reconciler
-	ctx, _, _, _, cancel := newTestSetup(t, func(r *Reconciler) {
-		reconciler = r
-	})
+	ctx, _, _, _, cancel := newTestSetup(t)
 	defer cancel()
 
 	r := Route("test-ns", "test-route", WithRouteLabel(map[string]string{"route": "test-route"}))
 	rev := newTestRevision(r.Namespace, "revision")
-	tcInvalidRev := traffic.Config{Targets: map[string]traffic.RevisionTargets{
-		traffic.DefaultTarget: {{
-			TrafficTarget: v1.TrafficTarget{
-				RevisionName: "invalid-revision",
-				Percent:      ptr.Int64(100),
-			},
-		}}}}
-	ctx = config.ToContext(ctx, &config.Config{
-		GC: &gc.Config{
-			StaleRevisionLastpinnedDebounce: time.Minute,
-		},
-	})
 	fakeservingclient.Get(ctx).ServingV1().Revisions(r.Namespace).Create(ctx, rev, metav1.CreateOptions{})
 	fakerevisioninformer.Get(ctx).Informer().GetIndexer().Add(rev)
-
-	// Try reconciling target revisions for a revision that does not exist. No err should be returned
-	if err := reconciler.reconcileTargetRevisions(ctx, &tcInvalidRev, r); err != nil {
-		t.Fatal("Error reconciling target revisions:", err)
-	}
 }
 
 func newTestRevision(namespace, name string) *v1.Revision {
@@ -176,22 +101,11 @@ func newTestRevision(namespace, name string) *v1.Revision {
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      name,
 			Namespace: namespace,
-			Annotations: map[string]string{
-				serving.RevisionLastPinnedAnnotationKey: v1.RevisionLastPinnedString(time.Now().Add(-1 * time.Hour)),
-			},
 		},
 		Spec: v1.RevisionSpec{},
 	}
 }
 
-func getLastPinnedTimestamp(t *testing.T, rev *v1.Revision) (string, error) {
-	lastPinnedTime, ok := rev.Annotations[serving.RevisionLastPinnedAnnotationKey]
-	if !ok {
-		return "", errors.New("last pinned annotation not found")
-	}
-	return lastPinnedTime, nil
-}
-
 func testIngressParams(t *testing.T, r *v1.Route, trafficOpts ...func(tc *traffic.Config)) (*traffic.Config,
 	[]netv1alpha1.IngressTLS) {
 	tc := &traffic.Config{Targets: map[string]traffic.RevisionTargets{
diff --git a/pkg/reconciler/route/resources/service_test.go b/pkg/reconciler/route/resources/service_test.go
index 688e3a672..770a04624 100644
--- a/pkg/reconciler/route/resources/service_test.go
+++ b/pkg/reconciler/route/resources/service_test.go
@@ -19,7 +19,6 @@ package resources
 import (
 	"context"
 	"testing"
-	"time"
 
 	"github.com/google/go-cmp/cmp"
 
@@ -37,7 +36,6 @@ import (
 	apiConfig "knative.dev/serving/pkg/apis/config"
 	"knative.dev/serving/pkg/apis/serving"
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
-	"knative.dev/serving/pkg/gc"
 	"knative.dev/serving/pkg/reconciler/route/config"
 	"knative.dev/serving/pkg/reconciler/route/traffic"
 
@@ -380,9 +378,6 @@ func testConfig() *config.Config {
 			DomainTemplate:      network.DefaultDomainTemplate,
 			TagTemplate:         network.DefaultTagTemplate,
 		},
-		GC: &gc.Config{
-			StaleRevisionLastpinnedDebounce: 1 * time.Minute,
-		},
 		Features: &apiConfig.Features{
 			MultiContainer:        apiConfig.Disabled,
 			PodSpecAffinity:       apiConfig.Disabled,
@@ -390,7 +385,6 @@ func testConfig() *config.Config {
 			PodSpecDryRun:         apiConfig.Enabled,
 			PodSpecNodeSelector:   apiConfig.Disabled,
 			PodSpecTolerations:    apiConfig.Disabled,
-			ResponsiveRevisionGC:  apiConfig.Disabled,
 			TagHeaderBasedRouting: apiConfig.Disabled,
 		},
 	}
diff --git a/pkg/reconciler/route/table_test.go b/pkg/reconciler/route/table_test.go
index 054439d1e..5c3e986fc 100644
--- a/pkg/reconciler/route/table_test.go
+++ b/pkg/reconciler/route/table_test.go
@@ -47,7 +47,6 @@ import (
 	v1 "knative.dev/serving/pkg/apis/serving/v1"
 	servingclient "knative.dev/serving/pkg/client/injection/client/fake"
 	routereconciler "knative.dev/serving/pkg/client/injection/reconciler/serving/v1/route"
-	"knative.dev/serving/pkg/gc"
 	kaccessor "knative.dev/serving/pkg/reconciler/accessor"
 	"knative.dev/serving/pkg/reconciler/route/config"
 	"knative.dev/serving/pkg/reconciler/route/resources"
@@ -1722,112 +1721,6 @@ func TestReconcile(t *testing.T) {
 	}))
 }
 
-func TestReconcileResponsiveGC(t *testing.T) {
-	table := TableTest{{
-		Name: "Update stale lastPinned",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Disabled),
-		Objects: []runtime.Object{
-			Route("default", "stale-lastpinned", WithConfigTarget("config"),
-				WithURL, WithAddress, WithRouteConditionsAutoTLSDisabled,
-				MarkTrafficAssigned, MarkIngressReady, WithRouteFinalizer,
-				WithRouteGeneration(1), WithRouteObservedGeneration,
-				WithStatusTraffic(
-					v1.TrafficTarget{
-						RevisionName:   "config-00001",
-						Percent:        ptr.Int64(100),
-						LatestRevision: ptr.Bool(true),
-					})),
-			cfg("default", "config",
-				WithConfigGeneration(1), WithLatestCreated("config-00001"), WithLatestReady("config-00001"),
-				// The Route controller attaches our label to this Configuration.
-				WithConfigLabel("serving.knative.dev/route", "stale-lastpinned"),
-			),
-			rev("default", "config", 1, MarkRevisionReady,
-				WithRevName("config-00001"),
-				WithLastPinned(fakeCurTime.Add(-10*time.Minute))),
-			simpleReadyIngress(
-				Route("default", "stale-lastpinned", WithConfigTarget("config"), WithURL),
-				&traffic.Config{
-					Targets: map[string]traffic.RevisionTargets{
-						traffic.DefaultTarget: {{
-							TrafficTarget: v1.TrafficTarget{
-								RevisionName:      "config-00001",
-								ConfigurationName: "config",
-								LatestRevision:    ptr.Bool(true),
-								Percent:           ptr.Int64(100),
-							},
-						}},
-					},
-				},
-			),
-			simpleK8sService(Route("default", "stale-lastpinned", WithConfigTarget("config"))),
-		},
-		WantPatches: []clientgotesting.PatchActionImpl{
-			patchLastPinned("default", "config-00001"),
-		},
-		Key: "default/stale-lastpinned",
-	}, {
-		Name: "lastPinned update disabled",
-		Ctx:  setResponsiveGCFeature(context.Background(), cfgmap.Enabled),
-		Objects: []runtime.Object{
-			Route("default", "stale-lastpinned", WithConfigTarget("config"),
-				WithURL, WithAddress, WithRouteConditionsAutoTLSDisabled,
-				MarkTrafficAssigned, MarkIngressReady, WithRouteFinalizer,
-				WithRouteGeneration(1), WithRouteObservedGeneration,
-				WithStatusTraffic(
-					v1.TrafficTarget{
-						RevisionName:   "config-00001",
-						Percent:        ptr.Int64(100),
-						LatestRevision: ptr.Bool(true),
-					})),
-			cfg("default", "config",
-				WithConfigGeneration(1), WithLatestCreated("config-00001"), WithLatestReady("config-00001"),
-				// The Route controller attaches our label to this Configuration.
-				WithConfigLabel("serving.knative.dev/route", "stale-lastpinned"),
-			),
-			rev("default", "config", 1, MarkRevisionReady,
-				WithRevName("config-00001")),
-			simpleReadyIngress(
-				Route("default", "stale-lastpinned", WithConfigTarget("config"), WithURL),
-				&traffic.Config{
-					Targets: map[string]traffic.RevisionTargets{
-						traffic.DefaultTarget: {{
-							TrafficTarget: v1.TrafficTarget{
-								ConfigurationName: "config",
-								LatestRevision:    ptr.Bool(true),
-								// Use the Revision name from the config.
-								RevisionName: "config-00001",
-								Percent:      ptr.Int64(100),
-							},
-						}},
-					},
-				},
-			),
-			simpleK8sService(Route("default", "stale-lastpinned", WithConfigTarget("config"))),
-		},
-		// WantPatches: Expecting no patch for when disabled.
-		Key: "default/stale-lastpinned",
-	}}
-
-	table.Test(t, MakeFactory(func(ctx context.Context, listers *Listers, cmw configmap.Watcher) controller.Reconciler {
-		r := &Reconciler{
-			kubeclient:          kubeclient.Get(ctx),
-			client:              servingclient.Get(ctx),
-			netclient:           networkingclient.Get(ctx),
-			configurationLister: listers.GetConfigurationLister(),
-			revisionLister:      listers.GetRevisionLister(),
-			serviceLister:       listers.GetK8sServiceLister(),
-			ingressLister:       listers.GetIngressLister(),
-			tracker:             ctx.Value(TrackerKey).(tracker.Interface),
-			clock:               FakeClock{Time: fakeCurTime},
-		}
-
-		return routereconciler.NewReconciler(ctx, logging.FromContext(ctx), servingclient.Get(ctx),
-			listers.GetRouteLister(), controller.GetEventRecorder(ctx), r,
-			controller.Options{ConfigStore: &testConfigStore{config: reconcilerTestConfig(false)}})
-	}))
-}
-
 func TestReconcileEnableAutoTLS(t *testing.T) {
 	table := TableTest{{
 		Name: "check that existing wildcard cert is used when creating a Route",
@@ -2636,24 +2529,10 @@ func mutateIngress(ci *netv1alpha1.Ingress) *netv1alpha1.Ingress {
 	return ci
 }
 
-func patchLastPinned(namespace, name string) clientgotesting.PatchActionImpl {
-	action := clientgotesting.PatchActionImpl{}
-	action.Name = name
-	action.Namespace = namespace
-	lastPinStr := v1.RevisionLastPinnedString(fakeCurTime)
-	patch := fmt.Sprintf(`{"metadata":{"annotations":{"serving.knative.dev/lastPinned":%q}}}`, lastPinStr)
-	action.Patch = []byte(patch)
-	return action
-}
-
 func rev(namespace, name string, generation int64, ro ...RevisionOption) *v1.Revision {
 	r := &v1.Revision{
 		ObjectMeta: metav1.ObjectMeta{
 			Namespace: namespace,
-			Annotations: map[string]string{
-				"serving.knative.dev/lastPinned": v1.RevisionLastPinnedString(
-					fakeCurTime.Add(-1 * time.Second)),
-			},
 			OwnerReferences: []metav1.OwnerReference{{
 				APIVersion:         v1.SchemeGroupVersion.String(),
 				Kind:               "Configuration",
@@ -2697,9 +2576,6 @@ func reconcilerTestConfig(enableAutoTLS bool) *config.Config {
 			TagTemplate:             network.DefaultTagTemplate,
 			HTTPProtocol:            network.HTTPEnabled,
 		},
-		GC: &gc.Config{
-			StaleRevisionLastpinnedDebounce: 1 * time.Minute,
-		},
 		Features: &cfgmap.Features{
 			MultiContainer:        cfgmap.Disabled,
 			PodSpecAffinity:       cfgmap.Disabled,
@@ -2707,7 +2583,6 @@ func reconcilerTestConfig(enableAutoTLS bool) *config.Config {
 			PodSpecDryRun:         cfgmap.Enabled,
 			PodSpecNodeSelector:   cfgmap.Disabled,
 			PodSpecTolerations:    cfgmap.Disabled,
-			ResponsiveRevisionGC:  cfgmap.Disabled,
 			TagHeaderBasedRouting: cfgmap.Disabled,
 		},
 	}
@@ -2739,12 +2614,6 @@ func url(s string) *apis.URL {
 	return url
 }
 
-func setResponsiveGCFeature(ctx context.Context, flag cfgmap.Flag) context.Context {
-	c := cfgmap.FromContextOrDefaults(ctx)
-	c.Features.ResponsiveRevisionGC = flag
-	return cfgmap.ToContext(ctx, c)
-}
-
 func simpleRollout(cfg string, revs []traffic.RevisionRollout) IngressOption {
 	return func(i *netv1alpha1.Ingress) {
 		r := &traffic.Rollout{
diff --git a/pkg/reconciler/route/traffic/traffic_test.go b/pkg/reconciler/route/traffic/traffic_test.go
index 6f610d74c..828e7122b 100644
--- a/pkg/reconciler/route/traffic/traffic_test.go
+++ b/pkg/reconciler/route/traffic/traffic_test.go
@@ -22,7 +22,6 @@ import (
 	"fmt"
 	"os"
 	"testing"
-	"time"
 
 	"github.com/davecgh/go-spew/spew"
 	"github.com/google/go-cmp/cmp"
@@ -38,7 +37,6 @@ import (
 	fakeclientset "knative.dev/serving/pkg/client/clientset/versioned/fake"
 	informers "knative.dev/serving/pkg/client/informers/externalversions"
 	listers "knative.dev/serving/pkg/client/listers/serving/v1"
-	"knative.dev/serving/pkg/gc"
 	"knative.dev/serving/pkg/reconciler/route/config"
 	"knative.dev/serving/pkg/reconciler/route/domains"
 	. "knative.dev/serving/pkg/testing/v1"
@@ -1511,8 +1509,5 @@ func testNetworkConfig() *config.Config {
 			DomainTemplate:      network.DefaultDomainTemplate,
 			TagTemplate:         network.DefaultTagTemplate,
 		},
-		GC: &gc.Config{
-			StaleRevisionLastpinnedDebounce: 1 * time.Minute,
-		},
 	}
 }
diff --git a/pkg/reconciler/service/resources/configuration_test.go b/pkg/reconciler/service/resources/configuration_test.go
index 44fd87f15..34f955d43 100644
--- a/pkg/reconciler/service/resources/configuration_test.go
+++ b/pkg/reconciler/service/resources/configuration_test.go
@@ -21,10 +21,7 @@ import (
 
 	corev1 "k8s.io/api/core/v1"
 
-	cfgmap "knative.dev/serving/pkg/apis/config"
 	"knative.dev/serving/pkg/apis/serving"
-	v1 "knative.dev/serving/pkg/apis/serving/v1"
-	"knative.dev/serving/pkg/reconciler/service/resources/names"
 )
 
 func TestConfigurationSpec(t *testing.T) {
@@ -49,31 +46,6 @@ func TestConfigurationSpec(t *testing.T) {
 	}
 }
 
-func TestConfigurationSpecGCAllowed(t *testing.T) {
-	s := createService()
-	c, _ := MakeConfigurationFromExisting(s, &v1.Configuration{}, cfgmap.Allowed)
-	if got, want := c.Name, testServiceName; got != want {
-		t.Errorf("expected %q for service name got %q", want, got)
-	}
-	if got, want := c.Namespace, testServiceNamespace; got != want {
-		t.Errorf("expected %q for service namespace got %q", want, got)
-	}
-	if got, want := c.Spec.GetTemplate().Spec.GetContainer().Name, testContainerName; got != want {
-		t.Errorf("expected %q for container name got %q", want, got)
-	}
-	expectOwnerReferencesSetCorrectly(t, c.OwnerReferences)
-
-	if got, want := len(c.Labels), 2; got != want {
-		t.Errorf("expected %d labels got %d", want, got)
-	}
-	if got, want := c.Labels[serving.ServiceLabelKey], testServiceName; got != want {
-		t.Errorf("expected %q labels got %q", want, got)
-	}
-	if got, want := c.Annotations[serving.RoutesAnnotationKey], names.Route(s); got != want {
-		t.Errorf("expected %q route annotation got %q", want, got)
-	}
-}
-
 func TestConfigurationHasNoKubectlAnnotation(t *testing.T) {
 	s := createServiceWithKubectlAnnotation()
 	c, err := MakeConfiguration(s)
diff --git a/pkg/testing/v1/revision.go b/pkg/testing/v1/revision.go
index 7bd4f1248..409370408 100644
--- a/pkg/testing/v1/revision.go
+++ b/pkg/testing/v1/revision.go
@@ -87,13 +87,6 @@ func WithCreationTimestamp(t time.Time) RevisionOption {
 	}
 }
 
-// WithLastPinned updates the "last pinned" annotation to the provided timestamp.
-func WithLastPinned(t time.Time) RevisionOption {
-	return func(rev *v1.Revision) {
-		rev.SetLastPinned(t)
-	}
-}
-
 // WithRevisionPreserveAnnotation updates the annotation with preserve key.
 func WithRevisionPreserveAnnotation() RevisionOption {
 	return func(rev *v1.Revision) {
diff --git a/test/v1/revision.go b/test/v1/revision.go
index ea409f06a..8ebbdaa3e 100644
--- a/test/v1/revision.go
+++ b/test/v1/revision.go
@@ -80,14 +80,7 @@ func IsRevisionReady(r *v1.Revision) (bool, error) {
 // IsRevisionRoutingActive will check if the revision is actively routing to a route.
 func IsRevisionRoutingActive(r *v1.Revision) (bool, error) {
 	routingState := r.Labels[serving.RoutingStateLabelKey]
-	if v1.RoutingState(routingState) == v1.RoutingStateActive {
-		return true, nil
-	}
-
-	// TODO(whaught): remove this fallback as we remove the lastPinned annotation
-	// Fallback to lastPinned - this is needed for downgrade tests where the annotation still exists.
-	_, pinned := r.Annotations[serving.RevisionLastPinnedAnnotationKey]
-	return pinned, nil
+	return v1.RoutingState(routingState) == v1.RoutingStateActive, nil
 }
 
 // IsRevisionAtExpectedGeneration returns a function that will check if the annotations
diff --git a/third_party/cert-manager-latest/net-certmanager.yaml b/third_party/cert-manager-latest/net-certmanager.yaml
index 43bb920b1..66516ffac 100644
--- a/third_party/cert-manager-latest/net-certmanager.yaml
+++ b/third_party/cert-manager-latest/net-certmanager.yaml
@@ -18,7 +18,7 @@ metadata:
   # These are the permissions needed by the `cert-manager` `Certificate` implementation.
   name: knative-serving-certmanager
   labels:
-    serving.knative.dev/release: "v20201110-859a9fd"
+    serving.knative.dev/release: "v20201117-065c199"
     serving.knative.dev/controller: "true"
     networking.knative.dev/certificate-provider: cert-manager
 rules:
@@ -49,7 +49,7 @@ kind: ValidatingWebhookConfiguration
 metadata:
   name: config.webhook.net-certmanager.networking.internal.knative.dev
   labels:
-    serving.knative.dev/release: "v20201110-859a9fd"
+    serving.knative.dev/release: "v20201117-065c199"
 webhooks:
   - admissionReviewVersions:
       - v1beta1
@@ -86,7 +86,7 @@ metadata:
   name: net-certmanager-webhook-certs
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201110-859a9fd"
+    serving.knative.dev/release: "v20201117-065c199"
 
 ---
 # Copyright 2020 The Knative Authors
@@ -109,7 +109,7 @@ metadata:
   name: config-certmanager
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201110-859a9fd"
+    serving.knative.dev/release: "v20201117-065c199"
     networking.knative.dev/certificate-provider: cert-manager
 data:
   _example: |
@@ -156,7 +156,7 @@ metadata:
   name: networking-certmanager
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201110-859a9fd"
+    serving.knative.dev/release: "v20201117-065c199"
     networking.knative.dev/certificate-provider: cert-manager
 spec:
   selector:
@@ -168,14 +168,14 @@ spec:
         cluster-autoscaler.kubernetes.io/safe-to-evict: "true"
       labels:
         app: networking-certmanager
-        serving.knative.dev/release: "v20201110-859a9fd"
+        serving.knative.dev/release: "v20201117-065c199"
     spec:
       serviceAccountName: controller
       containers:
         - name: networking-certmanager
           # This is the Go import path for the binary that is containerized
           # and substituted here.
-          image: gcr.io/knative-nightly/knative.dev/net-certmanager/cmd/controller@sha256:385ddbf5b1799b16cf6f0a1aed0b7f26fd2aabe017fb7f83a9632168bc9f7ed1
+          image: gcr.io/knative-nightly/knative.dev/net-certmanager/cmd/controller@sha256:ef1ebde73534b3f75886180887566f8b3d03855e8402e0e70bc519ebae9f8d5e
           resources:
             requests:
               cpu: 30m
@@ -213,7 +213,7 @@ kind: Service
 metadata:
   labels:
     app: networking-certmanager
-    serving.knative.dev/release: "v20201110-859a9fd"
+    serving.knative.dev/release: "v20201117-065c199"
     networking.knative.dev/certificate-provider: cert-manager
   name: networking-certmanager
   namespace: knative-serving
@@ -250,7 +250,7 @@ metadata:
   name: net-certmanager-webhook
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201110-859a9fd"
+    serving.knative.dev/release: "v20201117-065c199"
 spec:
   selector:
     matchLabels:
@@ -263,14 +263,14 @@ spec:
       labels:
         app: net-certmanager-webhook
         role: net-certmanager-webhook
-        serving.knative.dev/release: "v20201110-859a9fd"
+        serving.knative.dev/release: "v20201117-065c199"
     spec:
       serviceAccountName: controller
       containers:
         - name: webhook
           # This is the Go import path for the binary that is containerized
           # and substituted here.
-          image: gcr.io/knative-nightly/knative.dev/net-certmanager/cmd/webhook@sha256:e6843cdc1adb80952c88946abad7e1eedca64cab7d6787adb7f82ad02bb72a7f
+          image: gcr.io/knative-nightly/knative.dev/net-certmanager/cmd/webhook@sha256:8d3716b5034e8222061d4818ff88246b34e6eaf52dfb188a9a2f7cee4629792a
           resources:
             requests:
               cpu: 20m
@@ -329,7 +329,7 @@ metadata:
   namespace: knative-serving
   labels:
     role: net-certmanager-webhook
-    serving.knative.dev/release: "v20201110-859a9fd"
+    serving.knative.dev/release: "v20201117-065c199"
 spec:
   ports:
     # Define metrics and profiling for them to be accessible within service meshes.
diff --git a/third_party/istio-latest/net-istio.yaml b/third_party/istio-latest/net-istio.yaml
index fe5004350..341ce03d6 100644
--- a/third_party/istio-latest/net-istio.yaml
+++ b/third_party/istio-latest/net-istio.yaml
@@ -1,4 +1,4 @@
-# Generated when HEAD was cbc1a3d4e2ab6826fc042e3dad501c24d26dc327
+# Generated when HEAD was 7d1ed7ad8c91d140ebf046b099bba37c1f5cc412
 #
 # Copyright 2019 The Knative Authors
 #
@@ -20,7 +20,7 @@ metadata:
   # These are the permissions needed by the Istio Ingress implementation.
   name: knative-serving-istio
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     serving.knative.dev/controller: "true"
     networking.knative.dev/ingress-provider: istio
 rules:
@@ -50,7 +50,7 @@ metadata:
   name: knative-ingress-gateway
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -87,7 +87,7 @@ metadata:
   name: cluster-local-gateway
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -106,7 +106,7 @@ metadata:
   name: knative-local-gateway
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -125,7 +125,7 @@ metadata:
   name: knative-local-gateway
   namespace: istio-system
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   type: ClusterIP
@@ -145,7 +145,7 @@ metadata:
   name: "webhook"
   namespace: "knative-serving"
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -160,7 +160,7 @@ metadata:
   name: "istio-webhook"
   namespace: "knative-serving"
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -189,7 +189,7 @@ kind: MutatingWebhookConfiguration
 metadata:
   name: webhook.istio.networking.internal.knative.dev
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 webhooks:
   - admissionReviewVersions:
@@ -225,7 +225,7 @@ kind: ValidatingWebhookConfiguration
 metadata:
   name: config.webhook.istio.networking.internal.knative.dev
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 webhooks:
   - admissionReviewVersions:
@@ -263,7 +263,7 @@ metadata:
   name: istio-webhook-certs
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 
 ---
@@ -287,7 +287,7 @@ metadata:
   name: config-istio
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 data:
   _example: |
@@ -357,7 +357,7 @@ metadata:
   name: networking-istio
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -373,14 +373,14 @@ spec:
         sidecar.istio.io/inject: "false"
       labels:
         app: networking-istio
-        serving.knative.dev/release: "v20201111-cbc1a3d4"
+        serving.knative.dev/release: "v20201117-7d1ed7ad"
     spec:
       serviceAccountName: controller
       containers:
         - name: networking-istio
           # This is the Go import path for the binary that is containerized
           # and substituted here.
-          image: gcr.io/knative-nightly/knative.dev/net-istio/cmd/controller@sha256:604660e3e300ae8e4ebb92724cefea9eb14d997b664ec9cf76be2efc5c86bf20
+          image: gcr.io/knative-nightly/knative.dev/net-istio/cmd/controller@sha256:9773631ff1474a6373e4e1b27b4e238893b77bfb76b70b81c4ae9f96e5b59588
           resources:
             requests:
               cpu: 30m
@@ -437,7 +437,7 @@ metadata:
   name: istio-webhook
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -451,14 +451,14 @@ spec:
       labels:
         app: istio-webhook
         role: istio-webhook
-        serving.knative.dev/release: "v20201111-cbc1a3d4"
+        serving.knative.dev/release: "v20201117-7d1ed7ad"
     spec:
       serviceAccountName: controller
       containers:
         - name: webhook
           # This is the Go import path for the binary that is containerized
           # and substituted here.
-          image: gcr.io/knative-nightly/knative.dev/net-istio/cmd/webhook@sha256:17bc9958b175fb5d58995d35614bae730fbe84bdc48b7adacdad2f556c78d9d6
+          image: gcr.io/knative-nightly/knative.dev/net-istio/cmd/webhook@sha256:03889833812b7843d903313b0fba545962f2b938254daaad495cd1d38c61a9f1
           resources:
             requests:
               cpu: 20m
@@ -512,7 +512,7 @@ metadata:
   namespace: knative-serving
   labels:
     role: istio-webhook
-    serving.knative.dev/release: "v20201111-cbc1a3d4"
+    serving.knative.dev/release: "v20201117-7d1ed7ad"
     networking.knative.dev/ingress-provider: istio
 spec:
   ports: