* maintenance/sql.php learned the --cluster option. Let you run the script
on some external cluster instead of the primary cluster for a given wiki.
* (bug 20281) test the parsing of inline URLs.
+* Added Special:PagesWithProp, which lists pages using a particular page property.
=== Bug fixes in 1.21 ===
* (bug 40353) SpecialDoubleRedirect should support interwiki redirects.
* (bug 43251) prop=pageprops&ppprop= now accepts multiple props to query.
* ApiQueryImageInfo will now limit the number of calls to File::transform made
in any one query. If there are too many, iicontinue will be returned.
+* action=query&meta=siteinfo&siprop=general will now return the regexes used for
+ link trails and link prefices. Added for Parsoid support.
+* Added an API query module list=pageswithprop, which lists pages using a
+ particular page property.
+* Added an API query module list=pagepropnames, which lists all page prop names
+ currently in use on the wiki.
=== API internal changes in 1.21 ===
* For debugging only, a new global $wgDebugAPI removes many API restrictions when true.