Repository: knative/serving
Pull request #11691 (2021-07-16 11:05:32)

[Automated] Update net-certmanager nightly
/assign @knative/networking-wg-leads
/cc @knative/networking-wg-leads

Produced via:
```shell
for x in net-certmanager.yaml; do
  curl https://storage.googleapis.com/knative-nightly/net-certmanager/latest/$x > ${GITHUB_WORKSPACE}/./third_party/cert-manager-latest/$x
done
```

Details:
```
bumping knative.dev/net-certmanager 0ab8159...1a77ec3:
  > 1a77ec3 upgrade to latest dependencies (# 259)
```

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

This pull-request has been approved by: *<a href="https://github.com/knative/serving/pull/11691#" title="Author self-approved">knative-automation</a>*
To complete the [pull request process](https://git.k8s.io/community/contributors/guide/owners.md#the-code-review-process), please assign **vagababov** after the PR has been reviewed.
You can assign the PR to them by writing `/assign @vagababov` in a comment when ready.

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

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

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Approvers can indicate their approval by writing `/approve` in a comment
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</details>
<!-- META={"approvers":["vagababov"]} -->
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@@            Coverage Diff             @@
##             main   #11691      +/-   ##
==========================================
+ Coverage   87.82%   87.84%   +0.02%     
==========================================
  Files         190      190              
  Lines        9249     9249              
==========================================
+ Hits         8123     8125       +2     
+ Misses        876      874       -2     
  Partials      250      250              
```


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------

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Patch:
diff --git a/config/core/300-resources/configuration.yaml b/config/core/300-resources/configuration.yaml
index c2cef7582..762c9f8e5 100644
--- a/config/core/300-resources/configuration.yaml
+++ b/config/core/300-resources/configuration.yaml
@@ -647,6 +647,7 @@ spec:
                                   secretName:
                                     description: 'Name of the secret in the pod''s namespace to use. More info: https://kubernetes.io/docs/concepts/storage/volumes#secret'
                                     type: string
+                            x-kubernetes-preserve-unknown-fields: true
                       x-kubernetes-preserve-unknown-fields: true
             status:
               description: ConfigurationStatus communicates the observed state of the Configuration (from the controller).
diff --git a/config/core/300-resources/revision.yaml b/config/core/300-resources/revision.yaml
index a035aab78..d2e508c3b 100644
--- a/config/core/300-resources/revision.yaml
+++ b/config/core/300-resources/revision.yaml
@@ -626,6 +626,7 @@ spec:
                           secretName:
                             description: 'Name of the secret in the pod''s namespace to use. More info: https://kubernetes.io/docs/concepts/storage/volumes#secret'
                             type: string
+                    x-kubernetes-preserve-unknown-fields: true
               x-kubernetes-preserve-unknown-fields: true
             status:
               description: RevisionStatus communicates the observed state of the Revision (from the controller).
diff --git a/config/core/300-resources/service.yaml b/config/core/300-resources/service.yaml
index 0676b6c84..08c0e7053 100644
--- a/config/core/300-resources/service.yaml
+++ b/config/core/300-resources/service.yaml
@@ -651,6 +651,7 @@ spec:
                                   secretName:
                                     description: 'Name of the secret in the pod''s namespace to use. More info: https://kubernetes.io/docs/concepts/storage/volumes#secret'
                                     type: string
+                            x-kubernetes-preserve-unknown-fields: true
                       x-kubernetes-preserve-unknown-fields: true
                 traffic:
                   description: Traffic specifies how to distribute traffic over a collection of revisions and configurations.
diff --git a/config/core/configmaps/features.yaml b/config/core/configmaps/features.yaml
index 1723b5c80..3ae7def7b 100644
--- a/config/core/configmaps/features.yaml
+++ b/config/core/configmaps/features.yaml
@@ -20,7 +20,7 @@ metadata:
   labels:
     serving.knative.dev/release: devel
   annotations:
-    knative.dev/example-checksum: "8c1f8302"
+    knative.dev/example-checksum: "3bac317a"
 data:
   _example: |-
     ################################
@@ -131,3 +131,8 @@ data:
     # 1. Enabled: http2 connection will be attempted via upgrade.
     # 2. Disabled: http2 connection will only be attempted when port name is set to "h2c".
     autodetect-http2: "disabled"
+
+    # Controls whether volume support for EmptyDir is enabled or not.
+    # 1. Enabled: enabling EmptyDir volume support
+    # 2. Disabled: disabling EmptyDir volume support
+    kubernetes.podspec-volumes-emptydir: "disabled"
diff --git a/hack/boilerplate/boilerplate.go.txt b/hack/boilerplate/boilerplate.go.txt
index 6f818683b..4b6f5853d 100644
--- a/hack/boilerplate/boilerplate.go.txt
+++ b/hack/boilerplate/boilerplate.go.txt
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/hack/boilerplate/boilerplate.sh.txt b/hack/boilerplate/boilerplate.sh.txt
index f2b4c078a..8381f8a12 100755
--- a/hack/boilerplate/boilerplate.sh.txt
+++ b/hack/boilerplate/boilerplate.sh.txt
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-# Copyright 2020 The Knative Authors
+# Copyright 2021 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.
diff --git a/hack/schemapatch-config.yaml b/hack/schemapatch-config.yaml
index 4174c1192..e6f8feafd 100644
--- a/hack/schemapatch-config.yaml
+++ b/hack/schemapatch-config.yaml
@@ -5,6 +5,7 @@ k8s.io/api/core/v1.Volume:
     - Name
     - VolumeSource
 k8s.io/api/core/v1.VolumeSource:
+  preserveUnknownFields: true # for feature flagged fields
   allowedFields:
     - Secret
     - ConfigMap
diff --git a/pkg/apis/autoscaling/v1alpha1/zz_generated.deepcopy.go b/pkg/apis/autoscaling/v1alpha1/zz_generated.deepcopy.go
index a4a822dfa..90a378c20 100644
--- a/pkg/apis/autoscaling/v1alpha1/zz_generated.deepcopy.go
+++ b/pkg/apis/autoscaling/v1alpha1/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/apis/config/features.go b/pkg/apis/config/features.go
index 9a6023d80..bcc15d9e1 100644
--- a/pkg/apis/config/features.go
+++ b/pkg/apis/config/features.go
@@ -51,6 +51,7 @@ func defaultFeaturesConfig() *Features {
 		PodSpecSecurityContext:       Disabled,
 		ContainerSpecAddCapabilities: Disabled,
 		PodSpecTolerations:           Disabled,
+		PodSpecVolumesEmptyDir:       Disabled,
 		TagHeaderBasedRouting:        Disabled,
 		AutoDetectHTTP2:              Disabled,
 	}
@@ -71,6 +72,7 @@ func NewFeaturesConfigFromMap(data map[string]string) (*Features, error) {
 		asFlag("kubernetes.podspec-securitycontext", &nc.PodSpecSecurityContext),
 		asFlag("kubernetes.containerspec-addcapabilities", &nc.ContainerSpecAddCapabilities),
 		asFlag("kubernetes.podspec-tolerations", &nc.PodSpecTolerations),
+		asFlag("kubernetes.podspec-volumes-emptydir", &nc.PodSpecVolumesEmptyDir),
 		asFlag("tag-header-based-routing", &nc.TagHeaderBasedRouting),
 		asFlag("autodetect-http2", &nc.AutoDetectHTTP2)); err != nil {
 		return nil, err
@@ -95,6 +97,7 @@ type Features struct {
 	PodSpecSecurityContext       Flag
 	ContainerSpecAddCapabilities Flag
 	PodSpecTolerations           Flag
+	PodSpecVolumesEmptyDir       Flag
 	TagHeaderBasedRouting        Flag
 	AutoDetectHTTP2              Flag
 }
diff --git a/pkg/apis/config/zz_generated.deepcopy.go b/pkg/apis/config/zz_generated.deepcopy.go
index 87391bcf1..bd739725e 100644
--- a/pkg/apis/config/zz_generated.deepcopy.go
+++ b/pkg/apis/config/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/apis/serving/fieldmask.go b/pkg/apis/serving/fieldmask.go
index d0729f6d0..29de1eec5 100644
--- a/pkg/apis/serving/fieldmask.go
+++ b/pkg/apis/serving/fieldmask.go
@@ -29,10 +29,11 @@ import (
 // VolumeMask performs a _shallow_ copy of the Kubernetes Volume object to a new
 // Kubernetes Volume object bringing over only the fields allowed in the Knative API. This
 // does not validate the contents or the bounds of the provided fields.
-func VolumeMask(in *corev1.Volume) *corev1.Volume {
+func VolumeMask(ctx context.Context, in *corev1.Volume) *corev1.Volume {
 	if in == nil {
 		return nil
 	}
+	cfg := config.FromContextOrDefaults(ctx)
 
 	out := new(corev1.Volume)
 
@@ -40,17 +41,21 @@ func VolumeMask(in *corev1.Volume) *corev1.Volume {
 	out.Name = in.Name
 	out.VolumeSource = in.VolumeSource
 
+	if cfg.Features.PodSpecVolumesEmptyDir != config.Disabled {
+		out.EmptyDir = in.EmptyDir
+	}
+
 	return out
 }
 
 // VolumeSourceMask performs a _shallow_ copy of the Kubernetes VolumeSource object to a new
 // Kubernetes VolumeSource object bringing over only the fields allowed in the Knative API. This
 // does not validate the contents or the bounds of the provided fields.
-func VolumeSourceMask(in *corev1.VolumeSource) *corev1.VolumeSource {
+func VolumeSourceMask(ctx context.Context, in *corev1.VolumeSource) *corev1.VolumeSource {
 	if in == nil {
 		return nil
 	}
-
+	cfg := config.FromContextOrDefaults(ctx)
 	out := new(corev1.VolumeSource)
 
 	// Allowed fields
@@ -58,6 +63,10 @@ func VolumeSourceMask(in *corev1.VolumeSource) *corev1.VolumeSource {
 	out.ConfigMap = in.ConfigMap
 	out.Projected = in.Projected
 
+	if cfg.Features.PodSpecVolumesEmptyDir != config.Disabled {
+		out.EmptyDir = in.EmptyDir
+	}
+
 	// Too many disallowed fields to list
 
 	return out
diff --git a/pkg/apis/serving/k8s_validation.go b/pkg/apis/serving/k8s_validation.go
index 652b61334..679661348 100644
--- a/pkg/apis/serving/k8s_validation.go
+++ b/pkg/apis/serving/k8s_validation.go
@@ -82,10 +82,15 @@ var (
 )
 
 // ValidateVolumes validates the Volumes of a PodSpec.
-func ValidateVolumes(vs []corev1.Volume, mountedVolumes sets.String) (sets.String, *apis.FieldError) {
+func ValidateVolumes(ctx context.Context, vs []corev1.Volume, mountedVolumes sets.String) (sets.String, *apis.FieldError) {
 	volumes := make(sets.String, len(vs))
 	var errs *apis.FieldError
+	features := config.FromContextOrDefaults(ctx).Features
 	for i, volume := range vs {
+		if volume.EmptyDir != nil && features.PodSpecVolumesEmptyDir != config.Enabled {
+			errs = errs.Also((&apis.FieldError{Message: fmt.Sprintf("EmptyDir volume support is off, "+
+				"but found EmptyDir volume %s", volume.Name)}).ViaIndex(i))
+		}
 		if volumes.Has(volume.Name) {
 			errs = errs.Also((&apis.FieldError{
 				Message: fmt.Sprintf("duplicate volume name %q", volume.Name),
@@ -98,14 +103,14 @@ func ValidateVolumes(vs []corev1.Volume, mountedVolumes sets.String) (sets.Strin
 				Paths:   []string{"name"},
 			}).ViaIndex(i))
 		}
-		errs = errs.Also(validateVolume(volume).ViaIndex(i))
+		errs = errs.Also(validateVolume(ctx, volume).ViaIndex(i))
 		volumes.Insert(volume.Name)
 	}
 	return volumes, errs
 }
 
-func validateVolume(volume corev1.Volume) *apis.FieldError {
-	errs := apis.CheckDisallowedFields(volume, *VolumeMask(&volume))
+func validateVolume(ctx context.Context, volume corev1.Volume) *apis.FieldError {
+	errs := apis.CheckDisallowedFields(volume, *VolumeMask(ctx, &volume))
 	if volume.Name == "" {
 		errs = apis.ErrMissingField("name")
 	} else if len(validation.IsDNS1123Label(volume.Name)) != 0 {
@@ -113,7 +118,7 @@ func validateVolume(volume corev1.Volume) *apis.FieldError {
 	}
 
 	vs := volume.VolumeSource
-	errs = errs.Also(apis.CheckDisallowedFields(vs, *VolumeSourceMask(&vs)))
+	errs = errs.Also(apis.CheckDisallowedFields(vs, *VolumeSourceMask(ctx, &vs)))
 	var specified []string
 	if vs.Secret != nil {
 		specified = append(specified, "secret")
@@ -133,8 +138,17 @@ func validateVolume(volume corev1.Volume) *apis.FieldError {
 			errs = errs.Also(validateProjectedVolumeSource(proj).ViaFieldIndex("projected", i))
 		}
 	}
+	if vs.EmptyDir != nil {
+		specified = append(specified, "emptyDir")
+		errs = errs.Also(validateEmptyDirFields(vs.EmptyDir).ViaField("emptyDir"))
+	}
 	if len(specified) == 0 {
-		errs = errs.Also(apis.ErrMissingOneOf("secret", "configMap", "projected"))
+		fieldPaths := []string{"secret", "configMap", "projected"}
+		cfg := config.FromContextOrDefaults(ctx)
+		if cfg.Features.PodSpecVolumesEmptyDir == config.Enabled {
+			fieldPaths = append(fieldPaths, "emptyDir")
+		}
+		errs = errs.Also(apis.ErrMissingOneOf(fieldPaths...))
 	} else if len(specified) > 1 {
 		errs = errs.Also(apis.ErrMultipleOneOf(specified...))
 	}
@@ -211,6 +225,19 @@ func validateKeyToPath(k2p corev1.KeyToPath) *apis.FieldError {
 	return errs
 }
 
+func validateEmptyDirFields(dir *corev1.EmptyDirVolumeSource) *apis.FieldError {
+	var errs *apis.FieldError
+	if dir.Medium != "" && dir.Medium != "Memory" {
+		errs = errs.Also(apis.ErrInvalidValue(dir.Medium, "medium"))
+	}
+	if dir.SizeLimit != nil {
+		if dir.SizeLimit.Value() < 0 {
+			errs = errs.Also(apis.ErrInvalidValue(dir.SizeLimit, "sizeLimit"))
+		}
+	}
+	return errs
+}
+
 func validateEnvValueFrom(ctx context.Context, source *corev1.EnvVarSource) *apis.FieldError {
 	if source == nil {
 		return nil
@@ -289,7 +316,7 @@ func ValidatePodSpec(ctx context.Context, ps corev1.PodSpec) *apis.FieldError {
 
 	errs = errs.Also(ValidatePodSecurityContext(ctx, ps.SecurityContext).ViaField("securityContext"))
 
-	volumes, err := ValidateVolumes(ps.Volumes, AllMountedVolumes(ps.Containers))
+	volumes, err := ValidateVolumes(ctx, ps.Volumes, AllMountedVolumes(ps.Containers))
 	if err != nil {
 		errs = errs.Also(err.ViaField("volumes"))
 	}
diff --git a/pkg/apis/serving/v1/zz_generated.deepcopy.go b/pkg/apis/serving/v1/zz_generated.deepcopy.go
index 98ae8bdaa..05508067d 100644
--- a/pkg/apis/serving/v1/zz_generated.deepcopy.go
+++ b/pkg/apis/serving/v1/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/apis/serving/v1alpha1/zz_generated.deepcopy.go b/pkg/apis/serving/v1alpha1/zz_generated.deepcopy.go
index 8565d4ef3..3ca9cf38b 100644
--- a/pkg/apis/serving/v1alpha1/zz_generated.deepcopy.go
+++ b/pkg/apis/serving/v1alpha1/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/autoscaler/config/autoscalerconfig/zz_generated.deepcopy.go b/pkg/autoscaler/config/autoscalerconfig/zz_generated.deepcopy.go
index a6725329a..90cda5782 100644
--- a/pkg/autoscaler/config/autoscalerconfig/zz_generated.deepcopy.go
+++ b/pkg/autoscaler/config/autoscalerconfig/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/autoscaler/metrics/stat.pb.go b/pkg/autoscaler/metrics/stat.pb.go
index 29ce11075..7c38b8dbf 100644
--- a/pkg/autoscaler/metrics/stat.pb.go
+++ b/pkg/autoscaler/metrics/stat.pb.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/autoscaler/scaling/zz_generated.deepcopy.go b/pkg/autoscaler/scaling/zz_generated.deepcopy.go
index 868800a74..316ca6d29 100644
--- a/pkg/autoscaler/scaling/zz_generated.deepcopy.go
+++ b/pkg/autoscaler/scaling/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/clientset.go b/pkg/client/clientset/versioned/clientset.go
index 305681ad7..5a9fff82c 100644
--- a/pkg/client/clientset/versioned/clientset.go
+++ b/pkg/client/clientset/versioned/clientset.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/doc.go b/pkg/client/clientset/versioned/doc.go
index e48c2aa44..20dbc6ffb 100644
--- a/pkg/client/clientset/versioned/doc.go
+++ b/pkg/client/clientset/versioned/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/fake/clientset_generated.go b/pkg/client/clientset/versioned/fake/clientset_generated.go
index 519e7ff0e..f762902d3 100644
--- a/pkg/client/clientset/versioned/fake/clientset_generated.go
+++ b/pkg/client/clientset/versioned/fake/clientset_generated.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/fake/doc.go b/pkg/client/clientset/versioned/fake/doc.go
index 2c4903250..3b00d536c 100644
--- a/pkg/client/clientset/versioned/fake/doc.go
+++ b/pkg/client/clientset/versioned/fake/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/fake/register.go b/pkg/client/clientset/versioned/fake/register.go
index 6dc0ac498..d2fb2372d 100644
--- a/pkg/client/clientset/versioned/fake/register.go
+++ b/pkg/client/clientset/versioned/fake/register.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/scheme/doc.go b/pkg/client/clientset/versioned/scheme/doc.go
index 7acc2dcf2..5597166be 100644
--- a/pkg/client/clientset/versioned/scheme/doc.go
+++ b/pkg/client/clientset/versioned/scheme/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/scheme/register.go b/pkg/client/clientset/versioned/scheme/register.go
index 28f853465..e9cd57bd1 100644
--- a/pkg/client/clientset/versioned/scheme/register.go
+++ b/pkg/client/clientset/versioned/scheme/register.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/autoscaling_client.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/autoscaling_client.go
index 03344f58c..779374ff0 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/autoscaling_client.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/autoscaling_client.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/doc.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/doc.go
index 41e872fe9..f905d3a21 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/doc.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/doc.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/doc.go
index c7f6e65ca..d5a46ef55 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/doc.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_autoscaling_client.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_autoscaling_client.go
index 1a172fd0c..e4969eb79 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_autoscaling_client.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_autoscaling_client.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_metric.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_metric.go
index ee7ad98ef..1f43b1513 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_metric.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_metric.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_podautoscaler.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_podautoscaler.go
index 44bd8baa9..3d1709e79 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_podautoscaler.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/fake/fake_podautoscaler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/generated_expansion.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/generated_expansion.go
index a9b63f8e0..f41ec07cb 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/generated_expansion.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/generated_expansion.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/metric.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/metric.go
index 5848fdedb..da606b614 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/metric.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/metric.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/podautoscaler.go b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/podautoscaler.go
index 0c08fd7d4..493a17f56 100644
--- a/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/podautoscaler.go
+++ b/pkg/client/clientset/versioned/typed/autoscaling/v1alpha1/podautoscaler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/configuration.go b/pkg/client/clientset/versioned/typed/serving/v1/configuration.go
index 0caac939f..842680885 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/configuration.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/configuration.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/doc.go b/pkg/client/clientset/versioned/typed/serving/v1/doc.go
index 5b83bd1f4..8c88ffc0b 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/doc.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/fake/doc.go b/pkg/client/clientset/versioned/typed/serving/v1/fake/doc.go
index c7f6e65ca..d5a46ef55 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/fake/doc.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/fake/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_configuration.go b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_configuration.go
index f61d774e2..c605621af 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_configuration.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_configuration.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_revision.go b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_revision.go
index a197cfcfe..a8a7a11a7 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_revision.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_revision.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_route.go b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_route.go
index 4fa156dd2..533b61c71 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_route.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_route.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_service.go b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_service.go
index 1c7601e98..f5dcb1eb1 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_service.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_service.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_serving_client.go b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_serving_client.go
index 617587c4c..36d7831a4 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_serving_client.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/fake/fake_serving_client.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/generated_expansion.go b/pkg/client/clientset/versioned/typed/serving/v1/generated_expansion.go
index 4c0460b13..e9fb41509 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/generated_expansion.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/generated_expansion.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/revision.go b/pkg/client/clientset/versioned/typed/serving/v1/revision.go
index f0d7e92ed..ea57aa2a5 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/revision.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/revision.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/route.go b/pkg/client/clientset/versioned/typed/serving/v1/route.go
index e2e7b446c..87bd27869 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/route.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/route.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/service.go b/pkg/client/clientset/versioned/typed/serving/v1/service.go
index 5411fb7f6..ff25abea2 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/service.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/service.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1/serving_client.go b/pkg/client/clientset/versioned/typed/serving/v1/serving_client.go
index 25925ba2d..c5d873588 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1/serving_client.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1/serving_client.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1alpha1/doc.go b/pkg/client/clientset/versioned/typed/serving/v1alpha1/doc.go
index 41e872fe9..f905d3a21 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1alpha1/doc.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1alpha1/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1alpha1/domainmapping.go b/pkg/client/clientset/versioned/typed/serving/v1alpha1/domainmapping.go
index 606935b69..87eab554c 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1alpha1/domainmapping.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1alpha1/domainmapping.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/doc.go b/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/doc.go
index c7f6e65ca..d5a46ef55 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/doc.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/doc.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/fake_domainmapping.go b/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/fake_domainmapping.go
index f224fe836..0e7a60d0b 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/fake_domainmapping.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/fake_domainmapping.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/fake_serving_client.go b/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/fake_serving_client.go
index 3dde006e6..a4a433c45 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/fake_serving_client.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1alpha1/fake/fake_serving_client.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1alpha1/generated_expansion.go b/pkg/client/clientset/versioned/typed/serving/v1alpha1/generated_expansion.go
index ce84dcec6..718498c9f 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1alpha1/generated_expansion.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1alpha1/generated_expansion.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/clientset/versioned/typed/serving/v1alpha1/serving_client.go b/pkg/client/clientset/versioned/typed/serving/v1alpha1/serving_client.go
index 1a4aa0ff9..6ccc82c20 100644
--- a/pkg/client/clientset/versioned/typed/serving/v1alpha1/serving_client.go
+++ b/pkg/client/clientset/versioned/typed/serving/v1alpha1/serving_client.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/autoscaling/interface.go b/pkg/client/informers/externalversions/autoscaling/interface.go
index a21a2a0bd..525ea01f8 100644
--- a/pkg/client/informers/externalversions/autoscaling/interface.go
+++ b/pkg/client/informers/externalversions/autoscaling/interface.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/autoscaling/v1alpha1/interface.go b/pkg/client/informers/externalversions/autoscaling/v1alpha1/interface.go
index fa410aa8d..949a3c50e 100644
--- a/pkg/client/informers/externalversions/autoscaling/v1alpha1/interface.go
+++ b/pkg/client/informers/externalversions/autoscaling/v1alpha1/interface.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/autoscaling/v1alpha1/metric.go b/pkg/client/informers/externalversions/autoscaling/v1alpha1/metric.go
index 4ae981da2..01d1ff2bd 100644
--- a/pkg/client/informers/externalversions/autoscaling/v1alpha1/metric.go
+++ b/pkg/client/informers/externalversions/autoscaling/v1alpha1/metric.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/autoscaling/v1alpha1/podautoscaler.go b/pkg/client/informers/externalversions/autoscaling/v1alpha1/podautoscaler.go
index d7da12087..264e27f21 100644
--- a/pkg/client/informers/externalversions/autoscaling/v1alpha1/podautoscaler.go
+++ b/pkg/client/informers/externalversions/autoscaling/v1alpha1/podautoscaler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/factory.go b/pkg/client/informers/externalversions/factory.go
index 812bda5ae..bb28fb3cd 100644
--- a/pkg/client/informers/externalversions/factory.go
+++ b/pkg/client/informers/externalversions/factory.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/generic.go b/pkg/client/informers/externalversions/generic.go
index 6addf44e4..b53cac5de 100644
--- a/pkg/client/informers/externalversions/generic.go
+++ b/pkg/client/informers/externalversions/generic.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/internalinterfaces/factory_interfaces.go b/pkg/client/informers/externalversions/internalinterfaces/factory_interfaces.go
index 94e406ae7..9197d4589 100644
--- a/pkg/client/informers/externalversions/internalinterfaces/factory_interfaces.go
+++ b/pkg/client/informers/externalversions/internalinterfaces/factory_interfaces.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/serving/interface.go b/pkg/client/informers/externalversions/serving/interface.go
index 99b8785d8..ceddabb0e 100644
--- a/pkg/client/informers/externalversions/serving/interface.go
+++ b/pkg/client/informers/externalversions/serving/interface.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/serving/v1/configuration.go b/pkg/client/informers/externalversions/serving/v1/configuration.go
index 3056d742f..eafe51901 100644
--- a/pkg/client/informers/externalversions/serving/v1/configuration.go
+++ b/pkg/client/informers/externalversions/serving/v1/configuration.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/serving/v1/interface.go b/pkg/client/informers/externalversions/serving/v1/interface.go
index d1a44d318..f466a2565 100644
--- a/pkg/client/informers/externalversions/serving/v1/interface.go
+++ b/pkg/client/informers/externalversions/serving/v1/interface.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/serving/v1/revision.go b/pkg/client/informers/externalversions/serving/v1/revision.go
index de376c591..3c5cf9874 100644
--- a/pkg/client/informers/externalversions/serving/v1/revision.go
+++ b/pkg/client/informers/externalversions/serving/v1/revision.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/serving/v1/route.go b/pkg/client/informers/externalversions/serving/v1/route.go
index edf0bbc2f..ef7602b1a 100644
--- a/pkg/client/informers/externalversions/serving/v1/route.go
+++ b/pkg/client/informers/externalversions/serving/v1/route.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/serving/v1/service.go b/pkg/client/informers/externalversions/serving/v1/service.go
index ecc3d6a7e..d678c306b 100644
--- a/pkg/client/informers/externalversions/serving/v1/service.go
+++ b/pkg/client/informers/externalversions/serving/v1/service.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/serving/v1alpha1/domainmapping.go b/pkg/client/informers/externalversions/serving/v1alpha1/domainmapping.go
index 8ca15b535..de1b884fe 100644
--- a/pkg/client/informers/externalversions/serving/v1alpha1/domainmapping.go
+++ b/pkg/client/informers/externalversions/serving/v1alpha1/domainmapping.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/informers/externalversions/serving/v1alpha1/interface.go b/pkg/client/informers/externalversions/serving/v1alpha1/interface.go
index d8c5fa17e..94dea22e1 100644
--- a/pkg/client/informers/externalversions/serving/v1alpha1/interface.go
+++ b/pkg/client/informers/externalversions/serving/v1alpha1/interface.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/client/client.go b/pkg/client/injection/client/client.go
index 381791491..21c8fd06e 100644
--- a/pkg/client/injection/client/client.go
+++ b/pkg/client/injection/client/client.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/client/fake/fake.go b/pkg/client/injection/client/fake/fake.go
index 85d05f5df..f8d39c3b4 100644
--- a/pkg/client/injection/client/fake/fake.go
+++ b/pkg/client/injection/client/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/ducks/autoscaling/v1alpha1/podscalable/fake/fake.go b/pkg/client/injection/ducks/autoscaling/v1alpha1/podscalable/fake/fake.go
index dd70a7f11..5511a12c6 100644
--- a/pkg/client/injection/ducks/autoscaling/v1alpha1/podscalable/fake/fake.go
+++ b/pkg/client/injection/ducks/autoscaling/v1alpha1/podscalable/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/ducks/autoscaling/v1alpha1/podscalable/podscalable.go b/pkg/client/injection/ducks/autoscaling/v1alpha1/podscalable/podscalable.go
index 2c12a21bc..0079960da 100644
--- a/pkg/client/injection/ducks/autoscaling/v1alpha1/podscalable/podscalable.go
+++ b/pkg/client/injection/ducks/autoscaling/v1alpha1/podscalable/podscalable.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/autoscaling/v1alpha1/metric/fake/fake.go b/pkg/client/injection/informers/autoscaling/v1alpha1/metric/fake/fake.go
index c25d54b23..7bf67f7de 100644
--- a/pkg/client/injection/informers/autoscaling/v1alpha1/metric/fake/fake.go
+++ b/pkg/client/injection/informers/autoscaling/v1alpha1/metric/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/autoscaling/v1alpha1/metric/filtered/fake/fake.go b/pkg/client/injection/informers/autoscaling/v1alpha1/metric/filtered/fake/fake.go
index ffcbdd7ab..ba6b2b1c2 100644
--- a/pkg/client/injection/informers/autoscaling/v1alpha1/metric/filtered/fake/fake.go
+++ b/pkg/client/injection/informers/autoscaling/v1alpha1/metric/filtered/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/autoscaling/v1alpha1/metric/filtered/metric.go b/pkg/client/injection/informers/autoscaling/v1alpha1/metric/filtered/metric.go
index a239c99b5..9f046fe17 100644
--- a/pkg/client/injection/informers/autoscaling/v1alpha1/metric/filtered/metric.go
+++ b/pkg/client/injection/informers/autoscaling/v1alpha1/metric/filtered/metric.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/autoscaling/v1alpha1/metric/metric.go b/pkg/client/injection/informers/autoscaling/v1alpha1/metric/metric.go
index 2f744bfc7..077e67aaa 100644
--- a/pkg/client/injection/informers/autoscaling/v1alpha1/metric/metric.go
+++ b/pkg/client/injection/informers/autoscaling/v1alpha1/metric/metric.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/fake/fake.go b/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/fake/fake.go
index 3298a3a28..b0bb96e36 100644
--- a/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/fake/fake.go
+++ b/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/filtered/fake/fake.go b/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/filtered/fake/fake.go
index 01c311213..0267a462c 100644
--- a/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/filtered/fake/fake.go
+++ b/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/filtered/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/filtered/podautoscaler.go b/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/filtered/podautoscaler.go
index 06decbadc..c38ba2055 100644
--- a/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/filtered/podautoscaler.go
+++ b/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/filtered/podautoscaler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/podautoscaler.go b/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/podautoscaler.go
index 3cd1e5fc3..09d15405c 100644
--- a/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/podautoscaler.go
+++ b/pkg/client/injection/informers/autoscaling/v1alpha1/podautoscaler/podautoscaler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/factory/factory.go b/pkg/client/injection/informers/factory/factory.go
index d705ff870..25480f827 100644
--- a/pkg/client/injection/informers/factory/factory.go
+++ b/pkg/client/injection/informers/factory/factory.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/factory/fake/fake.go b/pkg/client/injection/informers/factory/fake/fake.go
index 131731f87..dd9fb9262 100644
--- a/pkg/client/injection/informers/factory/fake/fake.go
+++ b/pkg/client/injection/informers/factory/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/factory/filtered/fake/fake_filtered_factory.go b/pkg/client/injection/informers/factory/filtered/fake/fake_filtered_factory.go
index c472f14c4..60ef2ecbe 100644
--- a/pkg/client/injection/informers/factory/filtered/fake/fake_filtered_factory.go
+++ b/pkg/client/injection/informers/factory/filtered/fake/fake_filtered_factory.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/factory/filtered/filtered_factory.go b/pkg/client/injection/informers/factory/filtered/filtered_factory.go
index c0f6e9b9f..90e7187ee 100644
--- a/pkg/client/injection/informers/factory/filtered/filtered_factory.go
+++ b/pkg/client/injection/informers/factory/filtered/filtered_factory.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/configuration/configuration.go b/pkg/client/injection/informers/serving/v1/configuration/configuration.go
index b05458a9a..ab0b5b7f7 100644
--- a/pkg/client/injection/informers/serving/v1/configuration/configuration.go
+++ b/pkg/client/injection/informers/serving/v1/configuration/configuration.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/configuration/fake/fake.go b/pkg/client/injection/informers/serving/v1/configuration/fake/fake.go
index 41b91f080..f2d6dcd1f 100644
--- a/pkg/client/injection/informers/serving/v1/configuration/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1/configuration/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/configuration/filtered/configuration.go b/pkg/client/injection/informers/serving/v1/configuration/filtered/configuration.go
index d99119ca4..735601e03 100644
--- a/pkg/client/injection/informers/serving/v1/configuration/filtered/configuration.go
+++ b/pkg/client/injection/informers/serving/v1/configuration/filtered/configuration.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/configuration/filtered/fake/fake.go b/pkg/client/injection/informers/serving/v1/configuration/filtered/fake/fake.go
index 5de08f0a9..b1c4498b8 100644
--- a/pkg/client/injection/informers/serving/v1/configuration/filtered/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1/configuration/filtered/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/revision/fake/fake.go b/pkg/client/injection/informers/serving/v1/revision/fake/fake.go
index 034c4b90c..d02f84b2c 100644
--- a/pkg/client/injection/informers/serving/v1/revision/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1/revision/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/revision/filtered/fake/fake.go b/pkg/client/injection/informers/serving/v1/revision/filtered/fake/fake.go
index 972cabe09..d63d94261 100644
--- a/pkg/client/injection/informers/serving/v1/revision/filtered/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1/revision/filtered/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/revision/filtered/revision.go b/pkg/client/injection/informers/serving/v1/revision/filtered/revision.go
index 5865edc3a..6637b9761 100644
--- a/pkg/client/injection/informers/serving/v1/revision/filtered/revision.go
+++ b/pkg/client/injection/informers/serving/v1/revision/filtered/revision.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/revision/revision.go b/pkg/client/injection/informers/serving/v1/revision/revision.go
index 2278e8e86..bda1c9c52 100644
--- a/pkg/client/injection/informers/serving/v1/revision/revision.go
+++ b/pkg/client/injection/informers/serving/v1/revision/revision.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/route/fake/fake.go b/pkg/client/injection/informers/serving/v1/route/fake/fake.go
index 21ab38fec..eb529b28e 100644
--- a/pkg/client/injection/informers/serving/v1/route/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1/route/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/route/filtered/fake/fake.go b/pkg/client/injection/informers/serving/v1/route/filtered/fake/fake.go
index 1ae107c86..799a916cb 100644
--- a/pkg/client/injection/informers/serving/v1/route/filtered/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1/route/filtered/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/route/filtered/route.go b/pkg/client/injection/informers/serving/v1/route/filtered/route.go
index 9815efd20..1c6705bd9 100644
--- a/pkg/client/injection/informers/serving/v1/route/filtered/route.go
+++ b/pkg/client/injection/informers/serving/v1/route/filtered/route.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/route/route.go b/pkg/client/injection/informers/serving/v1/route/route.go
index de1e0faaa..319d1cb5c 100644
--- a/pkg/client/injection/informers/serving/v1/route/route.go
+++ b/pkg/client/injection/informers/serving/v1/route/route.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/service/fake/fake.go b/pkg/client/injection/informers/serving/v1/service/fake/fake.go
index a777b56d7..e70dc6f3a 100644
--- a/pkg/client/injection/informers/serving/v1/service/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1/service/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/service/filtered/fake/fake.go b/pkg/client/injection/informers/serving/v1/service/filtered/fake/fake.go
index bb53dddb0..131f9537e 100644
--- a/pkg/client/injection/informers/serving/v1/service/filtered/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1/service/filtered/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/service/filtered/service.go b/pkg/client/injection/informers/serving/v1/service/filtered/service.go
index e38446261..2b6a4b7a5 100644
--- a/pkg/client/injection/informers/serving/v1/service/filtered/service.go
+++ b/pkg/client/injection/informers/serving/v1/service/filtered/service.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1/service/service.go b/pkg/client/injection/informers/serving/v1/service/service.go
index 4729e3358..39dbb7028 100644
--- a/pkg/client/injection/informers/serving/v1/service/service.go
+++ b/pkg/client/injection/informers/serving/v1/service/service.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1alpha1/domainmapping/domainmapping.go b/pkg/client/injection/informers/serving/v1alpha1/domainmapping/domainmapping.go
index 294ec37c5..f8e11f477 100644
--- a/pkg/client/injection/informers/serving/v1alpha1/domainmapping/domainmapping.go
+++ b/pkg/client/injection/informers/serving/v1alpha1/domainmapping/domainmapping.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1alpha1/domainmapping/fake/fake.go b/pkg/client/injection/informers/serving/v1alpha1/domainmapping/fake/fake.go
index 9ff838d93..1426ea833 100644
--- a/pkg/client/injection/informers/serving/v1alpha1/domainmapping/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1alpha1/domainmapping/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1alpha1/domainmapping/filtered/domainmapping.go b/pkg/client/injection/informers/serving/v1alpha1/domainmapping/filtered/domainmapping.go
index a5e15f7e2..101121392 100644
--- a/pkg/client/injection/informers/serving/v1alpha1/domainmapping/filtered/domainmapping.go
+++ b/pkg/client/injection/informers/serving/v1alpha1/domainmapping/filtered/domainmapping.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/informers/serving/v1alpha1/domainmapping/filtered/fake/fake.go b/pkg/client/injection/informers/serving/v1alpha1/domainmapping/filtered/fake/fake.go
index e5a00fe4a..7f59b9d49 100644
--- a/pkg/client/injection/informers/serving/v1alpha1/domainmapping/filtered/fake/fake.go
+++ b/pkg/client/injection/informers/serving/v1alpha1/domainmapping/filtered/fake/fake.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/controller.go b/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/controller.go
index cd793575f..7f079f5a3 100644
--- a/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/controller.go
+++ b/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/controller.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/reconciler.go b/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/reconciler.go
index 6818e7b57..4f753b851 100644
--- a/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/reconciler.go
+++ b/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/reconciler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/state.go b/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/state.go
index ae2cc377b..593626728 100644
--- a/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/state.go
+++ b/pkg/client/injection/reconciler/autoscaling/v1alpha1/metric/state.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/controller.go b/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/controller.go
index 4ee906e05..f86bc0515 100644
--- a/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/controller.go
+++ b/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/controller.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/reconciler.go b/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/reconciler.go
index a82ae6d5b..d421e8f6d 100644
--- a/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/reconciler.go
+++ b/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/reconciler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/state.go b/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/state.go
index 493241146..1f99366c3 100644
--- a/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/state.go
+++ b/pkg/client/injection/reconciler/autoscaling/v1alpha1/podautoscaler/state.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/configuration/controller.go b/pkg/client/injection/reconciler/serving/v1/configuration/controller.go
index 4330452c0..8334f96a5 100644
--- a/pkg/client/injection/reconciler/serving/v1/configuration/controller.go
+++ b/pkg/client/injection/reconciler/serving/v1/configuration/controller.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/configuration/reconciler.go b/pkg/client/injection/reconciler/serving/v1/configuration/reconciler.go
index e99337de5..2f8c0205c 100644
--- a/pkg/client/injection/reconciler/serving/v1/configuration/reconciler.go
+++ b/pkg/client/injection/reconciler/serving/v1/configuration/reconciler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/configuration/state.go b/pkg/client/injection/reconciler/serving/v1/configuration/state.go
index 0591dd42e..74077b7ba 100644
--- a/pkg/client/injection/reconciler/serving/v1/configuration/state.go
+++ b/pkg/client/injection/reconciler/serving/v1/configuration/state.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/revision/controller.go b/pkg/client/injection/reconciler/serving/v1/revision/controller.go
index e648fd31f..6a6817234 100644
--- a/pkg/client/injection/reconciler/serving/v1/revision/controller.go
+++ b/pkg/client/injection/reconciler/serving/v1/revision/controller.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/revision/reconciler.go b/pkg/client/injection/reconciler/serving/v1/revision/reconciler.go
index 6193fa42e..66838ac96 100644
--- a/pkg/client/injection/reconciler/serving/v1/revision/reconciler.go
+++ b/pkg/client/injection/reconciler/serving/v1/revision/reconciler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/revision/state.go b/pkg/client/injection/reconciler/serving/v1/revision/state.go
index a7a938549..cc55f1089 100644
--- a/pkg/client/injection/reconciler/serving/v1/revision/state.go
+++ b/pkg/client/injection/reconciler/serving/v1/revision/state.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/route/controller.go b/pkg/client/injection/reconciler/serving/v1/route/controller.go
index 38878a940..c2e9d1e4a 100644
--- a/pkg/client/injection/reconciler/serving/v1/route/controller.go
+++ b/pkg/client/injection/reconciler/serving/v1/route/controller.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/route/reconciler.go b/pkg/client/injection/reconciler/serving/v1/route/reconciler.go
index 620513cf9..63ff6c31e 100644
--- a/pkg/client/injection/reconciler/serving/v1/route/reconciler.go
+++ b/pkg/client/injection/reconciler/serving/v1/route/reconciler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/route/state.go b/pkg/client/injection/reconciler/serving/v1/route/state.go
index 15b91dc60..902225ab9 100644
--- a/pkg/client/injection/reconciler/serving/v1/route/state.go
+++ b/pkg/client/injection/reconciler/serving/v1/route/state.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/service/controller.go b/pkg/client/injection/reconciler/serving/v1/service/controller.go
index cf24d2ce4..cb8689e40 100644
--- a/pkg/client/injection/reconciler/serving/v1/service/controller.go
+++ b/pkg/client/injection/reconciler/serving/v1/service/controller.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/service/reconciler.go b/pkg/client/injection/reconciler/serving/v1/service/reconciler.go
index 5187474d1..7819fecdd 100644
--- a/pkg/client/injection/reconciler/serving/v1/service/reconciler.go
+++ b/pkg/client/injection/reconciler/serving/v1/service/reconciler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1/service/state.go b/pkg/client/injection/reconciler/serving/v1/service/state.go
index ebe704102..f6b2c0084 100644
--- a/pkg/client/injection/reconciler/serving/v1/service/state.go
+++ b/pkg/client/injection/reconciler/serving/v1/service/state.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/controller.go b/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/controller.go
index b2f64a94b..0f99c6c3e 100644
--- a/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/controller.go
+++ b/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/controller.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/reconciler.go b/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/reconciler.go
index eabe269dd..0f6a863d3 100644
--- a/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/reconciler.go
+++ b/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/reconciler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/state.go b/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/state.go
index dd5c6ebec..d7e90187c 100644
--- a/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/state.go
+++ b/pkg/client/injection/reconciler/serving/v1alpha1/domainmapping/state.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/autoscaling/v1alpha1/expansion_generated.go b/pkg/client/listers/autoscaling/v1alpha1/expansion_generated.go
index 58fd37c07..36f1c98d4 100644
--- a/pkg/client/listers/autoscaling/v1alpha1/expansion_generated.go
+++ b/pkg/client/listers/autoscaling/v1alpha1/expansion_generated.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/autoscaling/v1alpha1/metric.go b/pkg/client/listers/autoscaling/v1alpha1/metric.go
index 5ce8b725f..91b233b62 100644
--- a/pkg/client/listers/autoscaling/v1alpha1/metric.go
+++ b/pkg/client/listers/autoscaling/v1alpha1/metric.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/autoscaling/v1alpha1/podautoscaler.go b/pkg/client/listers/autoscaling/v1alpha1/podautoscaler.go
index 9db31b0b2..af7e0f171 100644
--- a/pkg/client/listers/autoscaling/v1alpha1/podautoscaler.go
+++ b/pkg/client/listers/autoscaling/v1alpha1/podautoscaler.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/serving/v1/configuration.go b/pkg/client/listers/serving/v1/configuration.go
index 4779a7cb0..1aa311d97 100644
--- a/pkg/client/listers/serving/v1/configuration.go
+++ b/pkg/client/listers/serving/v1/configuration.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/serving/v1/expansion_generated.go b/pkg/client/listers/serving/v1/expansion_generated.go
index 091768b12..625b823d8 100644
--- a/pkg/client/listers/serving/v1/expansion_generated.go
+++ b/pkg/client/listers/serving/v1/expansion_generated.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/serving/v1/revision.go b/pkg/client/listers/serving/v1/revision.go
index e860af2e0..c77fae236 100644
--- a/pkg/client/listers/serving/v1/revision.go
+++ b/pkg/client/listers/serving/v1/revision.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/serving/v1/route.go b/pkg/client/listers/serving/v1/route.go
index 50ceeca11..9d307dce0 100644
--- a/pkg/client/listers/serving/v1/route.go
+++ b/pkg/client/listers/serving/v1/route.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/serving/v1/service.go b/pkg/client/listers/serving/v1/service.go
index 7b7b568a2..af1076650 100644
--- a/pkg/client/listers/serving/v1/service.go
+++ b/pkg/client/listers/serving/v1/service.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/serving/v1alpha1/domainmapping.go b/pkg/client/listers/serving/v1alpha1/domainmapping.go
index 888d3b11a..fe23c1be7 100644
--- a/pkg/client/listers/serving/v1alpha1/domainmapping.go
+++ b/pkg/client/listers/serving/v1alpha1/domainmapping.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/client/listers/serving/v1alpha1/expansion_generated.go b/pkg/client/listers/serving/v1alpha1/expansion_generated.go
index 7a75e5ce2..d34d35912 100644
--- a/pkg/client/listers/serving/v1alpha1/expansion_generated.go
+++ b/pkg/client/listers/serving/v1alpha1/expansion_generated.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/deployment/zz_generated.deepcopy.go b/pkg/deployment/zz_generated.deepcopy.go
index 7a8b446b3..afb6fd2a5 100644
--- a/pkg/deployment/zz_generated.deepcopy.go
+++ b/pkg/deployment/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/gc/zz_generated.deepcopy.go b/pkg/gc/zz_generated.deepcopy.go
index 9a3151e12..fa92e497c 100644
--- a/pkg/gc/zz_generated.deepcopy.go
+++ b/pkg/gc/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/pkg/reconciler/route/config/zz_generated.deepcopy.go b/pkg/reconciler/route/config/zz_generated.deepcopy.go
index 86b30c499..f22e205b1 100644
--- a/pkg/reconciler/route/config/zz_generated.deepcopy.go
+++ b/pkg/reconciler/route/config/zz_generated.deepcopy.go
@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.


Test patch:
diff --git a/pkg/apis/config/features_test.go b/pkg/apis/config/features_test.go
index fa5390622..8fb45cb58 100644
--- a/pkg/apis/config/features_test.go
+++ b/pkg/apis/config/features_test.go
@@ -305,6 +305,24 @@ func TestFeaturesConfiguration(t *testing.T) {
 		data: map[string]string{
 			"tag-header-based-routing": "Enabled",
 		},
+	}, {
+		name:    "kubernetes.podspec-volumes-emptyDir Disabled",
+		wantErr: false,
+		wantFeatures: defaultWith(&Features{
+			PodSpecVolumesEmptyDir: Disabled,
+		}),
+		data: map[string]string{
+			"kubernetes.podspec-volumes-emptydir": "Disabled",
+		},
+	}, {
+		name:    "kubernetes.podspec-volumes-emptyDir Enabled",
+		wantErr: false,
+		wantFeatures: defaultWith(&Features{
+			PodSpecVolumesEmptyDir: Enabled,
+		}),
+		data: map[string]string{
+			"kubernetes.podspec-volumes-emptydir": "Enabled",
+		},
 	}}
 
 	for _, tt := range configTests {
diff --git a/pkg/apis/serving/fieldmask_test.go b/pkg/apis/serving/fieldmask_test.go
index 5b36493e3..84891cdbf 100644
--- a/pkg/apis/serving/fieldmask_test.go
+++ b/pkg/apis/serving/fieldmask_test.go
@@ -34,7 +34,7 @@ func TestVolumeMask(t *testing.T) {
 	}
 	in := want
 
-	got := VolumeMask(in)
+	got := VolumeMask(context.Background(), in)
 
 	if &want == &got {
 		t.Error("Input and output share addresses. Want different addresses")
@@ -46,7 +46,7 @@ func TestVolumeMask(t *testing.T) {
 		t.Error("VolumeMask (-want, +got):", diff)
 	}
 
-	if got = VolumeMask(nil); got != nil {
+	if got = VolumeMask(context.Background(), nil); got != nil {
 		t.Errorf("VolumeMask(nil) = %v, want: nil", got)
 	}
 }
@@ -62,7 +62,7 @@ func TestVolumeSourceMask(t *testing.T) {
 		NFS:       &corev1.NFSVolumeSource{},
 	}
 
-	got := VolumeSourceMask(in)
+	got := VolumeSourceMask(context.Background(), in)
 
 	if &want == &got {
 		t.Error("Input and output share addresses. Want different addresses")
@@ -74,7 +74,7 @@ func TestVolumeSourceMask(t *testing.T) {
 		t.Error("VolumeSourceMask (-want, +got):", diff)
 	}
 
-	if got = VolumeSourceMask(nil); got != nil {
+	if got = VolumeSourceMask(context.Background(), nil); got != nil {
 		t.Errorf("VolumeSourceMask(nil) = %v, want: nil", got)
 	}
 }
diff --git a/pkg/apis/serving/k8s_validation_test.go b/pkg/apis/serving/k8s_validation_test.go
index 0986b71a9..ad396efd2 100644
--- a/pkg/apis/serving/k8s_validation_test.go
+++ b/pkg/apis/serving/k8s_validation_test.go
@@ -97,6 +97,13 @@ func withContainerSpecAddCapabilitiesEnabled() configOption {
 	}
 }
 
+func withPodSpecVolumesEmptyDirEnabled() configOption {
+	return func(cfg *config.Config) *config.Config {
+		cfg.Features.PodSpecVolumesEmptyDir = config.Enabled
+		return cfg
+	}
+}
+
 func TestPodSpecValidation(t *testing.T) {
 	tests := []struct {
 		name    string
@@ -1512,9 +1519,10 @@ func TestContainerValidation(t *testing.T) {
 
 func TestVolumeValidation(t *testing.T) {
 	tests := []struct {
-		name string
-		v    corev1.Volume
-		want *apis.FieldError
+		name    string
+		v       corev1.Volume
+		want    *apis.FieldError
+		cfgOpts []configOption
 	}{{
 		name: "just name",
 		v: corev1.Volume{
@@ -1546,11 +1554,26 @@ func TestVolumeValidation(t *testing.T) {
 		v: corev1.Volume{
 			Name: "foo",
 			VolumeSource: corev1.VolumeSource{
-				EmptyDir: &corev1.EmptyDirVolumeSource{},
+				EmptyDir: &corev1.EmptyDirVolumeSource{
+					Medium:    "Memory",
+					SizeLimit: resource.NewQuantity(400, "G"),
+				},
+			},
+		},
+		cfgOpts: []configOption{withPodSpecVolumesEmptyDirEnabled()},
+	}, {
+		name: "invalid emptyDir volume",
+		v: corev1.Volume{
+			Name: "foo",
+			VolumeSource: corev1.VolumeSource{
+				EmptyDir: &corev1.EmptyDirVolumeSource{
+					Medium:    "Memory",
+					SizeLimit: resource.NewQuantity(-1, "G"),
+				},
 			},
 		},
-		want: apis.ErrMissingOneOf("secret", "configMap", "projected").Also(
-			apis.ErrDisallowedFields("emptyDir")),
+		want:    apis.ErrInvalidValue(-1, "emptyDir.sizeLimit"),
+		cfgOpts: []configOption{withPodSpecVolumesEmptyDirEnabled()},
 	}, {
 		name: "no volume source",
 		v: corev1.Volume{
@@ -1767,7 +1790,15 @@ func TestVolumeValidation(t *testing.T) {
 
 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {
-			got := validateVolume(test.v)
+			ctx := context.Background()
+			if test.cfgOpts != nil {
+				cfg := config.FromContextOrDefaults(ctx)
+				for _, opt := range test.cfgOpts {
+					cfg = opt(cfg)
+				}
+				ctx = config.ToContext(ctx, cfg)
+			}
+			got := validateVolume(ctx, test.v)
 			if diff := cmp.Diff(test.want.Error(), got.Error()); diff != "" {
 				t.Errorf("validateVolume (-want, +got): \n%s", diff)
 			}
diff --git a/pkg/reconciler/route/resources/service_test.go b/pkg/reconciler/route/resources/service_test.go
index df4a5699e..ca7c5c2da 100644
--- a/pkg/reconciler/route/resources/service_test.go
+++ b/pkg/reconciler/route/resources/service_test.go
@@ -370,14 +370,15 @@ func testConfig() *config.Config {
 			TagTemplate:         network.DefaultTagTemplate,
 		},
 		Features: &apiConfig.Features{
-			MultiContainer:        apiConfig.Disabled,
-			PodSpecAffinity:       apiConfig.Disabled,
-			PodSpecFieldRef:       apiConfig.Disabled,
-			PodSpecDryRun:         apiConfig.Enabled,
-			PodSpecHostAliases:    apiConfig.Disabled,
-			PodSpecNodeSelector:   apiConfig.Disabled,
-			PodSpecTolerations:    apiConfig.Disabled,
-			TagHeaderBasedRouting: apiConfig.Disabled,
+			MultiContainer:         apiConfig.Disabled,
+			PodSpecAffinity:        apiConfig.Disabled,
+			PodSpecFieldRef:        apiConfig.Disabled,
+			PodSpecDryRun:          apiConfig.Enabled,
+			PodSpecHostAliases:     apiConfig.Disabled,
+			PodSpecNodeSelector:    apiConfig.Disabled,
+			PodSpecTolerations:     apiConfig.Disabled,
+			PodSpecVolumesEmptyDir: apiConfig.Disabled,
+			TagHeaderBasedRouting:  apiConfig.Disabled,
 		},
 	}
 }
diff --git a/test/test_images/grpc-ping/proto/ping.pb.go b/test/test_images/grpc-ping/proto/ping.pb.go
index 4982efba6..4c0c43374 100644
--- a/test/test_images/grpc-ping/proto/ping.pb.go
+++ b/test/test_images/grpc-ping/proto/ping.pb.go
@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Knative Authors
+Copyright 2021 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.
diff --git a/third_party/cert-manager-latest/net-certmanager.yaml b/third_party/cert-manager-latest/net-certmanager.yaml
index 01ba12697..91a41385d 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: "v20210715-0ab81594"
+    serving.knative.dev/release: "v20210716-1a77ec30"
     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: "v20210715-0ab81594"
+    serving.knative.dev/release: "v20210716-1a77ec30"
     networking.knative.dev/certificate-provider: cert-manager
 webhooks:
   - admissionReviewVersions:
@@ -88,7 +88,7 @@ metadata:
   name: net-certmanager-webhook-certs
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210715-0ab81594"
+    serving.knative.dev/release: "v20210716-1a77ec30"
     networking.knative.dev/certificate-provider: cert-manager
 
 ---
@@ -112,7 +112,7 @@ metadata:
   name: config-certmanager
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210715-0ab81594"
+    serving.knative.dev/release: "v20210716-1a77ec30"
     networking.knative.dev/certificate-provider: cert-manager
 data:
   _example: |
@@ -159,7 +159,7 @@ metadata:
   name: net-certmanager-controller
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210715-0ab81594"
+    serving.knative.dev/release: "v20210716-1a77ec30"
     networking.knative.dev/certificate-provider: cert-manager
 spec:
   selector:
@@ -171,14 +171,14 @@ spec:
         cluster-autoscaler.kubernetes.io/safe-to-evict: "true"
       labels:
         app: net-certmanager-controller
-        serving.knative.dev/release: "v20210715-0ab81594"
+        serving.knative.dev/release: "v20210716-1a77ec30"
     spec:
       serviceAccountName: controller
       containers:
         - name: controller
           # 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@sha256:739946fe2051df7dfdb0d1817c19efb8b43eabec64d4b0e266b9e47c88b486e1
+          image: gcr.io/knative-nightly/knative.dev/net-certmanager/cmd/controller@sha256:acfd95c257f8853ca5f3476ed775b434131bc10105223fd8a14e8f55a2850ca2
           resources:
             requests:
               cpu: 30m
@@ -216,7 +216,7 @@ kind: Service
 metadata:
   labels:
     app: net-certmanager-controller
-    serving.knative.dev/release: "v20210715-0ab81594"
+    serving.knative.dev/release: "v20210716-1a77ec30"
     networking.knative.dev/certificate-provider: cert-manager
   name: net-certmanager-controller
   namespace: knative-serving
@@ -253,7 +253,7 @@ metadata:
   name: net-certmanager-webhook
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210715-0ab81594"
+    serving.knative.dev/release: "v20210716-1a77ec30"
     networking.knative.dev/certificate-provider: cert-manager
 spec:
   selector:
@@ -267,14 +267,14 @@ spec:
       labels:
         app: net-certmanager-webhook
         role: net-certmanager-webhook
-        serving.knative.dev/release: "v20210715-0ab81594"
+        serving.knative.dev/release: "v20210716-1a77ec30"
     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:d5b6ff2a5a6fa173496b372459577bddf5f3d48dd8a26c5b156856202b159d4b
+          image: gcr.io/knative-nightly/knative.dev/net-certmanager/cmd/webhook@sha256:3beeacdc1fa509a3b21ca0733b41d04182244587ca7a910d6cd14adb0366dc47
           resources:
             requests:
               cpu: 20m
@@ -333,7 +333,7 @@ metadata:
   namespace: knative-serving
   labels:
     role: net-certmanager-webhook
-    serving.knative.dev/release: "v20210715-0ab81594"
+    serving.knative.dev/release: "v20210716-1a77ec30"
     networking.knative.dev/certificate-provider: cert-manager
 spec:
   ports:
diff --git a/third_party/contour-latest/contour.yaml b/third_party/contour-latest/contour.yaml
index a67d95601..9a9ed1c70 100644
--- a/third_party/contour-latest/contour.yaml
+++ b/third_party/contour-latest/contour.yaml
@@ -1796,7 +1796,7 @@ spec:
     spec:
       containers:
         - name: contour
-          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:4cca3f4bc623202d4cf1fc0a0ddb1f999d7cfc1eae4943125be1edca48c7ff7e
+          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:87da4f77a24279571bde938cdd0a38d49e498906d517a000f15130a931de840c
           imagePullPolicy: IfNotPresent
           command:
             - contour
@@ -2032,7 +2032,7 @@ spec:
             - --config-path=/config/contour.yaml
           command:
             - contour
-          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:4cca3f4bc623202d4cf1fc0a0ddb1f999d7cfc1eae4943125be1edca48c7ff7e
+          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:87da4f77a24279571bde938cdd0a38d49e498906d517a000f15130a931de840c
           imagePullPolicy: IfNotPresent
           name: contour
           ports:
@@ -2121,7 +2121,7 @@ spec:
           args:
             - envoy
             - shutdown-manager
-          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:4cca3f4bc623202d4cf1fc0a0ddb1f999d7cfc1eae4943125be1edca48c7ff7e
+          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:87da4f77a24279571bde938cdd0a38d49e498906d517a000f15130a931de840c
           imagePullPolicy: IfNotPresent
           lifecycle:
             preStop:
@@ -2198,7 +2198,7 @@ spec:
             - --envoy-key-file=/certs/tls.key
           command:
             - contour
-          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:4cca3f4bc623202d4cf1fc0a0ddb1f999d7cfc1eae4943125be1edca48c7ff7e
+          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:87da4f77a24279571bde938cdd0a38d49e498906d517a000f15130a931de840c
           imagePullPolicy: IfNotPresent
           name: envoy-initconfig
           volumeMounts:
@@ -2463,7 +2463,7 @@ spec:
     spec:
       containers:
         - name: contour
-          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:4cca3f4bc623202d4cf1fc0a0ddb1f999d7cfc1eae4943125be1edca48c7ff7e
+          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:87da4f77a24279571bde938cdd0a38d49e498906d517a000f15130a931de840c
           imagePullPolicy: IfNotPresent
           command:
             - contour
@@ -2575,7 +2575,7 @@ spec:
             - --config-path=/config/contour.yaml
           command:
             - contour
-          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:4cca3f4bc623202d4cf1fc0a0ddb1f999d7cfc1eae4943125be1edca48c7ff7e
+          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:87da4f77a24279571bde938cdd0a38d49e498906d517a000f15130a931de840c
           imagePullPolicy: IfNotPresent
           name: contour
           ports:
@@ -2664,7 +2664,7 @@ spec:
           args:
             - envoy
             - shutdown-manager
-          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:4cca3f4bc623202d4cf1fc0a0ddb1f999d7cfc1eae4943125be1edca48c7ff7e
+          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:87da4f77a24279571bde938cdd0a38d49e498906d517a000f15130a931de840c
           imagePullPolicy: IfNotPresent
           lifecycle:
             preStop:
@@ -2741,7 +2741,7 @@ spec:
             - --envoy-key-file=/certs/tls.key
           command:
             - contour
-          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:4cca3f4bc623202d4cf1fc0a0ddb1f999d7cfc1eae4943125be1edca48c7ff7e
+          image: gcr.io/knative-nightly/github.com/projectcontour/contour/cmd/contour@sha256:87da4f77a24279571bde938cdd0a38d49e498906d517a000f15130a931de840c
           imagePullPolicy: IfNotPresent
           name: envoy-initconfig
           volumeMounts:
diff --git a/third_party/contour-latest/net-contour.yaml b/third_party/contour-latest/net-contour.yaml
index 28ad68fcf..a7b11ae68 100644
--- a/third_party/contour-latest/net-contour.yaml
+++ b/third_party/contour-latest/net-contour.yaml
@@ -33,7 +33,7 @@ metadata:
   namespace: knative-serving
   labels:
     networking.knative.dev/ingress-provider: contour
-    serving.knative.dev/release: "v20210715-6303386b"
+    serving.knative.dev/release: "v20210716-cd82cdf9"
 data:
   _example: |
     ################################
@@ -103,7 +103,7 @@ spec:
         - name: controller
           # This is the Go import path for the binary that is containerized
           # and substituted here.
-          image: gcr.io/knative-nightly/knative.dev/net-contour/cmd/controller@sha256:bf8da91451bed33c3861649a89c30db2a0fd85a9c443ce81ac97ad035473b2a8
+          image: gcr.io/knative-nightly/knative.dev/net-contour/cmd/controller@sha256:898101244699d7112e1db6841528067380844b3e69fd27c195146dc459185dec
           resources:
             requests:
               cpu: 40m
diff --git a/third_party/istio-latest/net-istio.yaml b/third_party/istio-latest/net-istio.yaml
index deffcd1bb..363f5297f 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 b4a4e5e74d6cee4534524ebe8a2982fd5296c822
+# Generated when HEAD was e4ba4b30ad70b8644d2638d6e3765098154f783e
 #
 # 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: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     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: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -87,7 +87,7 @@ metadata:
   name: knative-local-gateway
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -106,7 +106,7 @@ metadata:
   name: knative-local-gateway
   namespace: istio-system
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
     experimental.istio.io/disable-gateway-port-translation: "true"
 spec:
@@ -139,7 +139,7 @@ metadata:
   name: config-istio
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 data:
   _example: |
@@ -200,7 +200,7 @@ metadata:
   name: "webhook"
   namespace: "knative-serving"
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -216,7 +216,7 @@ metadata:
   name: "domainmapping-webhook"
   namespace: "knative-serving"
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -232,7 +232,7 @@ metadata:
   name: "net-istio-webhook"
   namespace: "knative-serving"
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -263,7 +263,7 @@ metadata:
   name: net-istio-controller
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -279,14 +279,14 @@ spec:
         sidecar.istio.io/inject: "false"
       labels:
         app: net-istio-controller
-        serving.knative.dev/release: "v20210713-b4a4e5e7"
+        serving.knative.dev/release: "v20210716-e4ba4b30"
     spec:
       serviceAccountName: controller
       containers:
         - name: controller
           # 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:cce20329b7f6748752b68db703f27fd12c8e01b96ce280b20709cacad4974b54
+          image: gcr.io/knative-nightly/knative.dev/net-istio/cmd/controller@sha256:0e268cba12144b06e2ec835e9382610fb8d409c14d822bb7a70a66992686e9bb
           resources:
             requests:
               cpu: 30m
@@ -343,7 +343,7 @@ metadata:
   name: net-istio-webhook
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 spec:
   selector:
@@ -357,14 +357,14 @@ spec:
       labels:
         app: net-istio-webhook
         role: net-istio-webhook
-        serving.knative.dev/release: "v20210713-b4a4e5e7"
+        serving.knative.dev/release: "v20210716-e4ba4b30"
     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@sha256:02a84e416a109c0765c973e588863b670a0fa716078dedcd54a5e23152de6be8
+          image: gcr.io/knative-nightly/knative.dev/net-istio/cmd/webhook@sha256:b2ea0257bf836b67334e943d4f5c40520e1740d700944d8def22356c7b30b516
           resources:
             requests:
               cpu: 20m
@@ -417,7 +417,7 @@ metadata:
   name: net-istio-webhook-certs
   namespace: knative-serving
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 
 ---
@@ -442,7 +442,7 @@ metadata:
   namespace: knative-serving
   labels:
     role: net-istio-webhook
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 spec:
   ports:
@@ -479,7 +479,7 @@ kind: MutatingWebhookConfiguration
 metadata:
   name: webhook.istio.networking.internal.knative.dev
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 webhooks:
   - admissionReviewVersions:
@@ -516,7 +516,7 @@ kind: ValidatingWebhookConfiguration
 metadata:
   name: config.webhook.istio.networking.internal.knative.dev
   labels:
-    serving.knative.dev/release: "v20210713-b4a4e5e7"
+    serving.knative.dev/release: "v20210716-e4ba4b30"
     networking.knative.dev/ingress-provider: istio
 webhooks:
   - admissionReviewVersions: