the text before diffing it.
* Deprecated formats dbg, txt, and yaml have been removed.
* (T47988) The protect log event details now use new-style formatting.
+* The following response properties from action=login are deprecated, and may
+ be removed in the future: lgtoken, cookieprefix, sessionid. Clients should
+ handle cookies to properly manage session state.
=== Action API internal changes in 1.27 ===
* ApiQueryORM removed.
* wfIsTrustedProxy() was removed (deprecated since 1.24).
* wfGetIP() was removed (deprecated since 1.19).
* MWHookException was removed.
+* OutputPage::appendSubtitle() was removed (deprecated since 1.19).
+* OutputPage::loginToUse() was removed (deprecated since 1.19).
== Compatibility ==