* Introduced $wgVerifyMimeTypeIE to allow disabling the MSIE 6/7 file type
detection heuristic on upload, which is more conservative than the checks
that were changed above.
+* $wgExternalDiffEngine — Setting this to a string value of 'wikidiff',
+ 'wikidiff2', or 'wikidiff3' will no longer work. This legacy behaviour was
+ deprecated in MediaWiki 1.27, 1.32, and 1.27, respectively.
* $wgSkipSkin — Setting this instead of $wgSkipSkins, deprecated in 1.23, is now
hard-deprecated.
* $wgLocalInterwiki — Setting this instead of $wgLocalInterwikis, deprecated in