* (bug 37812) ResourceLoader will notice when a module's definition changes and
recompile it accordingly.
* (bug 57201) SpecialRecentChangesFilters hook is now executed for feeds.
+* (bug 58640) Fixed a compatibility issue with PCRE 8.34 that caused pages
+ to appear blank or with missing text.
=== API changes in 1.23 ===
* (bug 54884) action=parse&prop=categories now indicates hidden and missing