* Added BaseTemplateAfterPortlet hook to allow injecting html after portlets in skins.
* Support has been added for a JSON based localisation file format. The
installer has been updated to use it.
+* Changes to content typography (fonts, line-height, etc.). See
+ https://www.mediawiki.org/wiki/Typography_refresh for further information.
=== Bug fixes in 1.23 ===
* (bug 41759) The "updated since last visit" markers (on history pages, recent