group has no key in wgDebugLogGroups, that will help triage the default log.
* (bug 24620) Add types to LogFormatter.
* jQuery JSON upgraded from 2.3 to 2.4.0.
+* Added GetDoubleUnderscoreIDs hook, for modifying the list of magic words.
=== Bug fixes in 1.21 ===
* (bug 40353) SpecialDoubleRedirect should support interwiki redirects.
log when determining whether an account is used.
* (bug 43379) Gracefully fail if rev_len is unavailable for a revision on the
History page.
+* (bug 42949) API no longer assumes all exceptions are MWException.
+* (bug 41733) Hide "New user message" (.usermessage) element from printable view.
+* (bug 39062) Special:Contributions will display changes that don't have
+ a parent id instead of just an empty bullet item.
+* wfMerge() now works if $wgDiff3 contains spaces
=== API changes in 1.21 ===
* prop=revisions can now report the contentmodel and contentformat.
* (bug 43137) Don't return the sha1 of revisions through the API if the content is
revision-deleted.
* ApiQueryImageInfo now also returns imageinfo for redirects.
+* list=alltransclusions added to enumerate every instance of page embedding
+* list=alllinks & alltransclusions now allow both 'from' and 'continue' in
+ the same query. When both are present, 'from' is simply ignored.
+* list=alllinks & alltransclusions now allow 'unique' in generators, to yield
+ a list of all link/template target pages instead of source pages.
+* BREAKING CHANGE: list=logevents output format changed for details of some log
+ types. Specifically, details that were formerly reported under a key like
+ "4::foo" will now be reported under a key of simply "foo".
=== Languages updated in 1.21 ===