in MW 1.20 (saving preferences using Special:Preferences cleared any
additional fields) and which has been disabled in 1.20.1 as a part of
a security fix (bug 42202).
-* Added the ability to limit the wall clock time used by shell processes,
+* Added the ability to limit the wall clock time used by shell processes,
as well as the CPU time. Configurable with $wgMaxShellWallClockTime.
=== Bug fixes in 1.21 ===
* wfMerge() now works if $wgDiff3 contains spaces
* (bug 43052) mediawiki.action.view.dblClickEdit.dblClickEdit should trigger
ca-edit click instead opening URL directly.
+* (bug 43964) Invalid value of "link" parameter in <gallery> no longer produces
+ a fatal error.
=== API changes in 1.21 ===
* prop=revisions can now report the contentmodel and contentformat.