Add a log entry if a new version is created by toggling the visibility of an element via Ajax (see #4163)
Added a mediaboxAdvanced patch to merge custom options (see #4149)
Allow "disabled" and "readonly" attributes in the back end (see #4131)
Do not add a form warning upon Ajax requests (see #4120)
Add a "protected" icon to subpages of a protected page (see #4123)
Add the admin e-mail address of a website root page to the page object (see #4115)
Correctly sort content element and module types in the help wizard (see #4156)
Only rebuild the style sheets in the Combiner in CSS mode (see #3944)
Do not generate links to previous and next months in the calendar if they do not contain any events (see #4160)
Also add the classes "float_above" and "float_below" to image containers (see #4157)
Several minor issues (#4160, #4137, #3926, #3851)
Removed the IE6 layout fix which added an non-breaking space to every activated column (see #23)
Support chaining in the `Model` and `Model_Collection` classes (see #4106)
Prevent administrators from disabling their own account (see #4102)
Show the media query in the style sheet overview (see #4042)
Added `$arrFile` as fourth parameter of the "getCombinedFile"-hook (see #3945)
Added an `addMultiple()` method to the Combiner (see #3814)
MooTools Browser.engine is deprecated (see #3994)
The color picker can now be activated in the data container (see #3874)
Add the table options when creating tables in the install tool (see #4169)