omeka/Omeka v2.3 on GitHub

Omeka 2.3 was released on March 19, 2015.

Enhancements

Accessibility improvements (added ARIA roles and landmarks, improved labels, navigation skip links)
New file derivative strategy using PHP's GD extension
Built-in support for setting default sort orders for browse pages
Element dropdowns on item advanced search respect the admin-configured element sorting order (#643)
The admin-configured page limits for browse pages are used for more controllers, including plugins
The listing of items on collection pages now follows the admin page limits (#601)
Support for the new access control directives used by Apache 2.4 (#631)
URLs within the default citation output now include a span wrapper to allow specific styling
New interface for resetting customized navigation to default settings
Improved error output for exceptions
Detailed error messages are now always shown for exceptions during upgrade
Support for newer versions (4.2+) of PHPUnit
The API now accepts sort_field and sort_dir GET parameters for sorting results
Omeka will hide the "Path to ImageMagick" setting when an alternative derivative strategy is in use
The System Information panel now uses internal "folder" names for both themes and plugins
Improved translation coverage (#655, #659)

Tags were incorrectly treated as case-sensitive in some places
Assigning tags to records caused an SQL error for some newer MySQL servers
The item advanced search "does not contain" worked incorrectly with elements having multiple texts
API authentication did not work properly on installations with no database prefix
browse_sort_links for "bare" links handled attributes incorrectly (#648)
Setting a custom homepage including a query string would silently set that query on all pages
Upgrades could fail on some "strict mode" MySQL configurations
Upgrades directly from old 1.x versions could fail when migrating collections
Theme overrides of plugin views did not apply when on a different plugin's page (#635)
The display of item search filters did not always recognize when users filtered by tag
Automatic alt attributes for file display were over-escaped
Admin-side page titles on hover were over-escaped
Long titles for records indexed for the sitewide search could be silently truncated or cause an error
The sitewide search form did not respect the documented submit_value option
Errors on individual items could cause the "Index Records" job to fail
Item Types did not properly clean up after themselves after they were deleted

Omeka 2.3 updates to the following versions of its external dependencies:

For change information geared toward developers, see What's New in Omeka 2.3 on Omeka's Read the Docs site.

The following members of the Omeka community contributed code, fixes, and improvements to Omeka 2.3: