required as all sessions are stored in Object Cache now.
* MWHttpRequest::execute() should be considered to return a StatusValue; the
Status return type is deprecated.
+* User::edits() (deprecated in 1.21) was removed.
+* Xml::escapeJsString() (deprecated in 1.21) was removed.
+* Article::getText() and Article::prepareTextForEdit() (deprecated in 1.21)
+ were removed.
+* Article::getAutosummary() and WikiPage::getAutosummary (deprecated in 1.21)
+ were removed.
+* Hooks ArticleViewCustom, EditPageGetDiffText and ShowRawCssJs (deprecated in 1.21)
+ were removed.
== Compatibility ==