details.
* $wgProfiling has been removed.
* The spyc library is now no longer included in phase3.
+* (bug 28343) Unused preferences contextlines/contextchars have been removed
=== New features in 1.18 ===
* (bug 8130) Query pages should limit to content namespaces, not just main
* (bug 27249) "Installed software" table in Special:Version should always be
left-to-right.
* (bug 28719) Do not call mLinkHolders __destruct explicitly
+* (bug 21196) Article::getContributors() no longer fails on PostgreSQL.
+* (bug 28752) XCache doesn't work in CLI mode.
+* (bug 28076) Thumbnail height limited to 360 pixels on Special:Listfiles
=== API changes in 1.18 ===
* (bug 26339) Throw warning when truncating an overlarge API result.
* (bug 26882) Allow listing of indefinite protections with the API.
* (bug 27344) add drprefix param to list=deletedrevs.
* (bug 28560) list=deletedrevs should die, if combination of param is invalid.
+* (bug 28238) paraminfo: output both limits for multi param
+* (bug 27179) API: List of extension tags through meta=siteinfo
+* Get a list of function hooks through meta=siteinfo
+* Get a list of all subscribed hooks, and those subscribers
+* (bug 28225) Allow hiding of user groups in list=allusers
+* (bug 27185) API: Add Special:ComparePages
+* (bug 28265) allow outputting of comments for action=expandtemplates
=== Languages updated in 1.18 ===