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
+* $wgUseInstantCommons now hotlinks Commons images by default instead of
+ downloading originals and thumbnailing them locally. This allows wikis to save
+ on CPU and bandwidth while reducing time to first byte for pages, even without
+ a thumbnail handler. See $wgForeignFileRepos documentation for tweaks.
+* (T27397) WebP is enabled by default as an uploadable filetype.
+* (T48998) $wgArticlePath must now be either a full url, or start with a "/".
+* $wgRateLimitLog was removed; use $wgDebugLogGroups['ratelimit'] instead.
+* Deprecated API formats dbg, txt, and yaml have been removed.
=== New features in 1.27 ===
* $wgDataCenterId and $wgDataCenterRoles where added, which will serve as
by using ApiMessage instances instead of strings for the $result value.
* $wgAPIMaxLagThreshold was added to limit bot changes when databases lag
becomes too high.
+* Skins and extensions can now use FlexBox mixins (.flex-display(@display: flex)
+ and .flex(@grow: 1, @shrink: 1, @width: auto, @order: 1)) in Less to create
+ cross-browser-compatible FlexBox rules. Users will still need to add fallback
+ float rules or the like for compatibility with IE9- separately.
==== External libraries ====
=== Bug fixes in 1.27 ===
+* Special:Upload will now display correct maximum allowed file size when running
+ under HHVM (T116347).
=== Action API changes in 1.27 ===
* Added list=allrevisions.
"was-deleted" warning.
* Added difftotextpst to query=revisions which preforms a pre-save transform on
the text before diffing it.
+* Deprecated formats dbg, txt, and yaml have been removed.
=== Action API internal changes in 1.27 ===
* ApiQueryORM removed.
+* The following classes have been removed:
+** ApiFormatDbg
+** ApiFormatTxt
+** ApiFormatYaml
=== Languages updated in 1.27 ===
regularly. Below only new and removed languages are listed, as well as
changes to languages because of Bugzilla reports.
+* (T113688) Change default numerals from Gurmukhi to Arabic for Punjabi locale.
+
=== Other changes in 1.27 ===
* ProfilerOutputUdp was removed. Note that there is a ProfilerOutputStats class.
* WikiPage::doDeleteArticleReal() and WikiPage::doDeleteArticle() now
* LinkCache::getGoodLinks and LinkCache::getBadLinks were removed (deprecated in 1.26).
* WikiPage::doQuickEdit() was removed (deprecated since 1.21).
* Removed SiteObject and SiteArray classes (deprecated in 1.21).
+* MessageBlobStore::getInstance() was removed (deprecated since 1.25).
== Compatibility ==