creations, similar to the topOnly option.
* Add mediawiki.ui.button styling to all pages so wiki content can use styled
buttons.
+* Special:UserLogin/signup now does AJAX checks for invalid and taken usernames,
+ displaying the error live.
=== Bug fixes in 1.23 ===
* (bug 41759) The "updated since last visit" markers (on history pages, recent
table.mw-prefixindex-list-table to avoid duplicate ids when the special page
is transcluded.
* (bug 62198) window.$j has been deprecated.
+* Preference "Disable link title conversion" was removed.
==== Removed classes ====
* FakeMemCachedClient (deprecated in 1.18)