A ton of new features, massive amount of cleanups. General bugfixes and improvements to documentation and developer features.
Relevant:
http://community.os.js.org/t/features-extending-base-css/65
http://community.os.js.org/t/notice-node-server-api-changes/73
http://community.os.js.org/t/features-package-less-and-custom-script-support/72
Digest:
Core: New 'Process' event system
Core: Better handling of autostarting
Core: Added more internal hooks
CoreWM: Improvements to smaller screen support
CoreWM: window list panel item now has context menu from actual window
CoreWM: Rewritten panel CSS implementation (better scaling and rotation support)
CoreWM: Better touch menu handling
CoreWM: Proper hotkey handling via configs
CoreWM: Fixed wrong calculation of desktop area when panel is on bottom
CoreWM: Trigger resize() when responsive design kicks in/out
CoreWM: CSS improvements
settings-manager: bugfixes
dialogs: Better handling of 'markdown-ish' messages
window: Added 'inited' hook/signal
WindowManager: Prevent crash when Window::init fails
Themes: Support for custom base LESS files
GUI: Disabled spell-shecking etc by default from textual inputs
GUI: Cleanups of some methods
GUI: Added scoped son() for events so you can bind context
GUI: Added get('selected') to 'gui-tabs'
GUI: 'gui-fileview' no longer shows empty columns on '0 bytes'
GUI: Prevent error on invalid triggers in 'Scheme'
GUI: Scheme now supports using app:// to load src attributes
GUI: 'gui-list-view' now behaves as a table
GUI: Bugfixes in Scheme
UI: Better user-select CSS
Handler: Exposed saveSession()`
API: Better application shutdown API
API: Fixes to getThemeResource()
API: Cleanups
Utils: $index() now checks elements to prevent errors
Utils: dirname() bugfixes
Utils: Added $parent() function
Utils: Added keyCombination() function
Utils: Improved preloader
VFS: Throw exceptions as early as possible in the API chain
VFS: Improved copying between different mountpoints
VFS: Updated signals and error handling
VFS: Cleanups
locales: Updated vi_VN
server-node: Moved core code into 'core' directory
server-node: Better commandline option support
server-node: Some improvements to scandir()
server-node: Display correct url when launching server
server-node: Added uncaughtException handler
server-node: Refactoring of entire API chain method arguments
server-node: Cleanups and bugfixes
build: Improved windows support in build scripts
build: Added support for append version string in resources
build: Customizable watermarks
build: Support for LESS files in applications
build: Support for custom before/after scripts in application build process
misc: More work on developer environment
misc: Updated unit tests
misc: Updated bithoundrc
misc: Fixed typos in documentation
misc: Updated docs