* (bug 16817) Group names in user rights log are now singular and in lowercase
* Special:Preferences no longer crashes if the wiki default date formatting
style is not valid for the user's interface language
+* (bug 23167) Check the watch checkbox by default if the watchcreations
+ preference is set
+* Maintenance script cleanupTitles is now able to fix titles stored
+in a negative namespace (which is invalid).
=== API changes in 1.17 ===
* (bug 22738) Allow filtering by action type on query=logevent
* Latgalian (ltg) (new)
* Rusyn (rue) (new)
+* (bug 23156) Commafy and search normalization updated for Belarusian
+ (Taraškievica)
+
== Compatibility ==
MediaWiki 1.17 requires PHP 5.1 (5.2 recommended). PHP 4 is no longer