-= MediaWiki release notes =
Security reminder: MediaWiki does not require PHP's register_globals. If you
have it on, turn it '''off''' if you can.
* (bug 29374) $wgVectorUseSimpleSearch is now enabled by default.
* Deprecated $wgAllowRealName is removed. Use $wgHiddenPrefs[] = 'realname'
instead.
+* (bug 39957) Added $wgUnwatchedPageThreshold, specifying minimum count
+ of page watchers required for the number to be accessible to users
+ without the unwatchedpages permission.
=== New features in 1.21 ===
+* (bug 38110) Schema changes (adding or dropping tables, indicies and
+ fields) can be now be done separately from from other changes that
+ update.php makes. This is useful in environments that use database
+ permissions to restrict schema changes but allow the DB user that
+ MediaWiki normally runs as to perform other changes that update.php
+ makes. Schema changes can be run seperately. See the file UPGRADE
+ for more information.
* (bug 34876) jquery.makeCollapsible has been improved in performance.
-* Added ContentHandler facility to allow extensions to support other content than wikitext.
- See docs/contenthandler.txt for details.
+* Added ContentHandler facility to allow extensions to support other content
+ than wikitext. See docs/contenthandler.txt for details.
* New feature was developed for showing high-DPI thumbnails for high-DPI mobile
and desktop displays (configurable with $wgResponsiveImages).
* Added new backend to represent and store information about sites and site
searches with the api in miser mode for deleted files.
* Add initial and programmatic sorting for tablesorter.
* Add the event "sortEnd.tablesorter", triggered after sorting has completed.
-* The Job system was refactored to allow for different backing stores for queues
- as well as cross-wiki access to queues, among other things. The schema for the
- DB queue was changed to support better concurrency and reduce deadlock errors.
+* The Job system was refactored to allow for different backing stores for
+ queues as well as cross-wiki access to queues, among other things. The schema
+ for the DB queue was changed to support better concurrency and reduce
+ deadlock errors.
* Added ApiQueryORM class to facilitate creation of query API modules based on
tables that have a corresponding ORMTable class.
* (bug 40876) Icon for PSD (Adobe Photoshop) file types.
preview from the edit page.
* Added EditPage::showStandardInputs:options hook to allow extensions to add
new fields to the "editOptions" area of the edit form.
+* Upload stash DB schema altered to improve upload performance.
+* The following global functions are now reporting deprecated warnings in
+ debug mode: wfMsg, wfMsgNoTrans, wfMsgForContent, wfMsgForContentNoTrans,
+ wfMsgReal, wfMsgGetKey, wfMsgHtml, wfMsgWikiHtml, wfMsgExt, wfEmptyMsg. Use
+ the Message class, or the global method wfMessage.
+* Debug message emitted by wfDebugLog() will now be prefixed with the group
+ name when its logged to the default log file. That is the case whenever the
+ group has no key in wgDebugLogGroups, that will help triage the default log.
+* (bug 24620) Add types to LogFormatter.
+* jQuery JSON upgraded from 2.3 to 2.4.0.
=== Bug fixes in 1.21 ===
* (bug 40353) SpecialDoubleRedirect should support interwiki redirects.
recentchanges table.
* (bug 32951) Do not register internal externals with absolute protocol,
when server has relative protocol.
-* (bug 39005) When purging proxies listed in $wgSquidServers using HTTP PURGE
- method requests, we now send a Host header by default, for Varnish
- compatibility. This also works with Squid in reverse-proxy mode. If you wish
- to support Squid configured in forward-proxy mode, set
+* (bug 39005) When purging proxies listed in $wgSquidServers using HTTP PURGE
+ method requests, we now send a Host header by default, for Varnish
+ compatibility. This also works with Squid in reverse-proxy mode. If you wish
+ to support Squid configured in forward-proxy mode, set
$wgSquidPurgeUseHostHeader to false.
* (bug 37020) sql.php with readline eats semicolon.
* (bug 11748) Properly handle optionally-closed HTML tags when Tidy is
caught during API execution.
* (bug 37963) Fixed loading process for user options.
* (bug 26995) Update filename field on Upload page after having sanitized it.
-* (bug 41793) Contribution links to users with 0 edits on Special:ListUsers didn't
- show up red.
-* (bug 41899) A PHP notice no longer occurs when using the "rvcontinue" API parameter.
+* (bug 41793) Contribution links to users with 0 edits on Special:ListUsers
+ didn't show up red.
+* (bug 41899) A PHP notice no longer occurs when using the "rvcontinue" API
+ parameter.
* (bug 42036) Account creation emails now contain canonical (not
protocol-relative) URLs.
* (bug 41990) Fix regression: API edit with redirect=true and lacking
starttimestamp and basetimestamp should not cause an edit conflict.
-* (bug 41706) EditPage: Preloaded page should be converted if possible and needed.
+* (bug 41706) EditPage: Preloaded page should be converted if possible and
+ needed.
* (bug 41886) Rowspans are no longer exploded by tablesorter until the table is
actually sorted.
-* (bug 2865) User interface HTML elements don't use lang attribute
+* (bug 2865) User interface HTML elements don't use lang attribute.
(completed the fix by adding the lang attribute to firstHeading).
* (bug 42173) Removed namespace prefixes on Special:UncategorizedCategories.
* (bug 36053) Log in "returnto" feature forgets query parameters if no
title parameter was specified.
* (bug 42410) API action=edit now returns correct timestamp for the new edit.
* (bug 14901) Email notification mistakes log action for new page creation.
+ Enotif no longer sends "page has been created" notifications for some log
+ actions. The following events now have a correct message: page creation,
+ deletion, move, restore (undeletion), change (edit).
* (bug 457) In the sidebar of Vector, CologneBlue, Monobook, and Monobook-based
skins, the heading levels have been changed from (variously per skin)
<h4>, <h5> or <h6> to only <h3>s, with a <h2> hidden heading above them.
If you are styling or scripting the headings in a custom way, this change
will require updates to your site's CSS or JS.
+* (bug 41342) jquery.suggestions should cancel any active (async) fetches
+ before it triggers another fetch.
+* (bug 42184) $wgUploadSizeWarning missing second variable.
+* (bug 34581) removeUnusedAccounts.php maintenance script now ignores newuser
+ log when determining whether an account is used.
+* (bug 43379) Gracefully fail if rev_len is unavailable for a revision on the
+ History page.
=== API changes in 1.21 ===
-* prop=revisions can now report the contentmodel and contentformat, see docs/contenthandler.txt.
-* action=edit and action=parse now support contentmodel and contentformat parameters to control the interpretation of
- page content; See docs/contenthandler.txt for details.
+* prop=revisions can now report the contentmodel and contentformat.
+ See docs/contenthandler.txt.
+* action=edit and action=parse now support contentmodel and contentformat
+ parameters to control the interpretation of page content.
+ See docs/contenthandler.txt for details.
* (bug 35693) ApiQueryImageInfo now suppresses errors when unserializing metadata.
* (bug 40111) Disable minor edit for page/section creation by API.
-* (bug 41042) Revert change to action=parse&page=... behavior when the page does not exist.
+* (bug 41042) Revert change to action=parse&page=... behavior when the page
+ does not exist.
+* (bug 27202) Add timestamp sort to list=allimages.
+* (bug 43137) Don't return the sha1 of revisions through the API if the content is
+ revision-deleted.
+* ApiQueryImageInfo now also returns imageinfo for redirects.
=== Languages updated in 1.21 ===
regularly. Below only new and removed languages are listed, as well as
changes to languages because of Bugzilla reports.
+* South Azerbaijani (azb) added.
* (bug 30040) Autonym for nds-nl is now 'Nedersaksies' (was 'Nedersaksisch').
* (bug 34977) Now formatted numbers in Spanish use space as separator
for thousands, as mandated by the Real Academia EspaƱola.
If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
new database fields are filled with data.
-If you are upgrading from MediaWiki 1.4.x or earlier, some major database
-changes are made, and there is a slightly higher chance that things could
-break. Don't forget to always back up your database before upgrading!
+If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
+1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
+with MediaWiki 1.21.
+
+Don't forget to always back up your database before upgrading!
See the file UPGRADE for more detailed upgrade instructions.