[Nexus 7 (2013) Android Development] jase33:
Changelog (notable features):

2014/01/11:

1. Re-synced repositories (2014/01/10 - 04:30PM PST)

2. Fixed ART runtime on GCC-4.8 builds (credit SlimRoms, craigacgomez)

3. Fixed Google Play backup-restore on Android 4.4+

4. Updated Quick Settings location tile drawables to reflect the current location mode (credit SlimRoms for drawables, craigacgomez)

5. Enabled DessertCake dream

6. Fixed wallpaper reset when restarting SystemUI

7. Improved AppOps layout (credit CyanogenMod, craigacgomez)

8. Removed option to move navigation bar buttons for phones

9. Added back option to switch to ART runtime in Settings > Developer options

10. Added detailed warning message when switching to ART runtime

11. Allow user to trigger volume media rescan (only for internal emulated volumes, primary volumes & non-removable volumes) from Settings > Storage (credit SlimRoms, craigacgomez)

12. Updated to libflac from AOSP master to fix pop & crackle when playing FLAC audio files

2013/12/27:

1. Bugfix: Properly update the state of the Expanded Desktop, Sync & Ringer Mode Quick Settings tiles when changes are triggered elsewhere

2013/12/26:

1. Re-synced repositories (2013/12/26 - 06:40PM PST)

2. Added Expanded Desktop Quick Settings tile. Press to toggle. Long-press for Display Settings

3. Added Sync Quick Settings tile. Press to toggle. Long-press for Sync Settings

4. Added Ringer Mode Quick Settings tile. Press to toggle between Normal, Vibrate & Silent ringer modes. Long-press for Sound Settings

5. Added back button long-press foreground app kill (configure via Settings > Developer options)

6. Added ability to set a user-defined hostname (configure via Settings > Developer options)

7. Added screen-off volume rocker wake (configure via Settings > Display)

8. Added screen-off volume rocker long-press music controls (configure via Settings > Sound)

9. Added safe headset volume toggle (configure via Settings > Sound)

10. Added lock screen quick unlock for pin and password security options (configure via Settings > Security)

11. Updated Settings application Android drawables to match the new KitKat style guidelines (credit SlimRoms)

12. Miscellaneous bug-fixes and enhancements

2013/12/22: Initial Release

Based to AOSP Android 4.4.2_r1 (KOT49H)

Navigation bar positioning (default/center, left or right) via Settings -> Display

Enabled root access by default

Includes Launcher3

Option to enable battery percent meter in Settings > Display

Enabled hidden App Ops (configure via Settings > Apps)

Advanced power menu (when screen is unlocked)

LockClock (cLock), CMFileManager & Calculator from CyanogenMod

Recent Apps clear all functionality with long-press action to drop VM caches

Inverted press/long-press actions of Wifi, Bluetooth & Location tiles

Translucent status bar & navigation bar

Enabled hidden physical keyboard Quick Launch configurations (configure via Settings > Apps)

Various fixes for the Exchange security policy bypass

Support for exec command with support for properties expansion in init scripts

Quiet Hours (configure via Settings > Sounds)

Categorized Settings > Display screen

Potential external storage access permissions fix

Disabled ability to change to ART runtime via Developer Settings temporarily

System-wide expanded desktop using the new immersive mode feature (credit SlimRoms & CyanogenMod)

Changed Settings > Apps to go to Application Settings instead of directly going to Manage Applications

Disabled lock/unlock sounds during music playback

Updated Superuser & CyanogenMod applications

Busybox, fuse, ntfs-3g, e2fsprogs & vold from CyanogenMod

USB OTG read/write support with dismissible notifications for non-primary volumes

Fixes for GCC 4.8+ toolchains

Enabled secure boot and secure adb

Enabled Google Location Services

Bluetooth AVRCP to use ARTIST metadata, and use ALBUMARTIST metadata only if ARTIST is not present

Remove file format transfer restriction in Bluetooth application, and use the Download directory to save received files

Enabled SELinux status information under Settings -> About

Disabled headset safe volume restriction