* $wgSkipSkin, which has been replaceable by $wgSkipSkins since 2005 (r9249), is
now formally deprecated.
* Removed deprecated $wgDisabledActions as it is hardly used anywhere.
+* $wgRateLimitLog has been deprecated and replaced by
+ $wgDebugLogGroup['ratelimit'].
=== New features in 1.23 ===
* ResourceLoader can utilize the Web Storage API to cache modules client-side.
whether to send a watchlist email notification.
* (bug 42026) Special:Contributions now includes an option to filter page
creations, similar to the topOnly option.
+* Add mediawiki.ui.button styling to all pages so wiki content can use styled
+ buttons.
=== Bug fixes in 1.23 ===
* (bug 41759) The "updated since last visit" markers (on history pages, recent