==== External libraries ====
* Update es5-shim from v4.0.0 to v4.1.5.
* Update json2 from revision 2014-02-04 to 2015-05-03.
+* Update Sinon.JS from 1.10.3 to 1.15.0.
=== Bug fixes in 1.26 ===
* (bug 51283) load.php sometimes sends 304 response without full headers
* mediaWiki.confirmCloseWindow now returns an object of functions, instead of
one function. The callback can't be called directly any more. The callback
function is replaced with confirmCloseWindow.release().
+* BREAKING CHANGE: Added an optional ResouceLoaderContext parameter to
+ ResourceLoaderModule::getDependencies(). Extension classes that override that
+ method should be updated. If they aren't updated, PHP Strict standards
+ warnings will appear when E_STRICT error reporting is enabled. Note: in the
+ near future, this parameter will probably become non-optional.
* Removed maintenance script deleteImageMemcached.php.
* MWFunction::newObj() was removed (deprecated in 1.25).
ObjectFactory::getObjectFromSpec() should be used instead.