New features and improvements

User Agent switched to Nightingale/Version (Build ID) Issue #248
Improved libnotify extension
Added MPRIS 1 & 2 support
Added GNOME MediaKeys support Issue #306
Added Linux Desktop Entry Actions Issue #288
Fixed background image and icons position in Mac OS X installer Issue #253
Added SEEKED Mediacore Event Issue #254
Display EQ band values Issue #259 and Issue #240
Fixed the icon not displaying on the Ubuntu/deb build Issue #256
Fixed the mashTape video frame on Windows and Mac Issue #277
Fixed the mashTape Flickr tab (SSL only enabled)
Fixed the Mac OS X dock controls (and added Stop item) Issues #186 and Issues #287
Fixed Mac OS X media key controls Issues #208
Fixed weird file permission when using Sync under Linux
Command line playback controls Issue #288
Added Equalizer presets with a set of default presets as well as saving user set presets Issue #260
Fixed clearing private data not working Issue #249
SHOUTcast now works with new API key from Radionomy Issue #282
Added Advanced Metadata Editor Tab Issue #308
Copy playlist items Issue #338
Move items in the play queue Issue #96
Updated Last.fm extension to use official scrobbling API
Display remaining track time on left side (click to toggle to it) Issue #323

Known Bugs

Concerts is not working since September 2012 → API needs to be updated Issue #137
New Releases add-on is not working either since a long time Issue #136
mashTape can cause crashes Issue #77
Various bugs within the version of XULR we're using, for example an allocation issue (though, this should be fixed with a new dependencies release).
Other bugs

Fixes for libnotify autoconf option, Issue #246
Unit tests now on travis-ci: https://travis-ci.org/nightingale-media-player/nightingale-hacking
Documentation built: http://www.thebecwar.com/ngale/html/index.html
OpenGrok up to date everyday: http://src.getnightingale.com/
Langpacks nightlies: http://locales.getnightingale.com/langpacks/1.12.2a/
INSTALL file with instructions & ability to uninstall
Autofetching the fitting deps, not only the release deps
Support to build gst-plugins
Better debian packaging
Optionally uses system's libnspr
Compilation time optimizations
Fixed a regexp for building on foreign Windows - Issue #176
Makefile verbose mode - Issue #327
Build number generation - Issue #255
Allow building on Mac 64-bit systems - Issue #354
Null-terminate the arguments for two gstreamer calls - Issue #373