creation of passwordless "system" users for logged actions.
* $wgMaxSquidPurgeTitles was removed.
* $wgAjaxWatch was removed. This is now enabled by default.
+* (T27397) WebP is enabled by default as an uploadable filetype
=== New features in 1.27 ===
* $wgDataCenterId and $wgDataCenterRoles where added, which will serve as
=== Other changes in 1.27 ===
* ProfilerOutputUdp was removed. Note that there is a ProfilerOutputStats class.
+* WikiPage::doDeleteArticleReal() and WikiPage::doDeleteArticle() now
+ ignore the 2nd and 3rd arguments (formerly $id and $commit).
+* Removed "loaderScripts" option from ResourceLoaderFileModule class.
+* Removed ORM-like wrapper added in 1.20.
== Compatibility ==