wiki.techinc.nl/RELEASE-NOTES-1.38

= MediaWiki 1.38 =

== MediaWiki 1.38.0-PRERELEASE ==

THIS IS NOT A RELEASE YET

MediaWiki 1.38 is an alpha-quality development branch, and is not recommended
for use in production.

== Upgrading notes for 1.38 ==
Don't forget to always back up your database before upgrading!

See the file UPGRADE for more detailed per-version upgrade instructions from the
oldest supported upgrading version, MediaWiki 1.29.

Some specific notes for MediaWiki 1.38 upgrades are below:
* …

For notes on 1.36.x and older releases, see HISTORY.

=== Configuration changes for system administrators in 1.38 ===
* …

==== New configuration ====
* $wgBrowserFormatDetection – This setting allows overriding browsers' automatic
  detection and handling of formats. It's initially used to prevent auto-linking
  of possible telephone numbers in wiki pages' output in Safari on iOS; this can
  be re-enabled if you wish, or locally extended for other browsers' quirks.
* …

==== Changed configuration ====
* $wgMaxImageArea - This setting may now be set to false to disable size
  checking before scaling. Extensions can still override its value by
  using the BitmapHandlerCheckImageArea hook.
* …

==== Removed configuration ====
* $wgShellLocale - This setting has been removed as it was a flawed solution
  to the problem of locale dependence, MediaWiki will now always set a locale
  of C.UTF-8 or C and works around the remaining problems of the C locale by
  not using escapeshellarg. This follows the direction of PHP 8.0, which sets
  a locale of C by default instead of respecting LC_CTYPE.
* $wgLoggedOutMaxAge - Experiment removed, originally added in 1.35. (T293848)
* $wgIncludejQueryMigrate - Deprecated in 1.36. We only support jQuery v3.
* …

=== New user-facing features in 1.38 ===
* …

=== New developer features in 1.38 ===
* Added a deleteUserEmail maintenance script - This file enables the deletion
  of a given user's associated email address. It can be helpful for
  privacy-preserving operations.
* …

=== External library changes in 1.38 ===
* …

==== New external libraries ====
* Added vue-composition-api 1.2.2

===== New development-only external libraries =====
* …

==== Changed external libraries ====
* Updated OOUI from v0.42.0 to v0.42.1
* Updated WVUI from v0.3.0 to v0.3.2
* Updated wikimedia/parsoid from v0.14.0-a14 to v0.15.0-a1.
* Updated wikimedia/purtle from 1.0.7 to 1.0.8.
* Updated wikimedia/shellbox from 2.0.0 to 3.0.0.
* Updated pear/mail_mime from 1.10.9 to 1.10.11.
* Updated pear/net_smtp from 1.9.2 to 1.10.0.
* Updated psr/log from 1.1.3 to 1.1.4.
* Updated wikimedia/wrappedstring from 3.2.0 to 4.0.1.
* …

===== Changed development-only external libraries =====
* Updated doctrine/dbal for PHP < 7.3 from 2.10.4 to 2.13.3.
* Updated doctrine/dbal for PHP >= 7.3 from 3.0.0 to 3.1.2.
* Updated composer/spdx-licenses from 1.5.4 to 1.5.5.
* Updated composer/semver from 3.5.4 to 3.5.5.
* …

==== Removed external libraries ====
* …

=== Bug fixes in 1.38 ===
* …

=== Action API changes in 1.38 ===
* …

=== Action API internal changes in 1.38 ===
* …

=== Languages updated in 1.38 ===
MediaWiki supports over 400 languages. Many localisations are updated regularly.
Below only new and removed languages are listed, as well as changes to languages
because of Phabricator reports.

* (T292166) Updated namespace names for the Lombard language.
* (T291899) Added language support for Xiang Chinese (hsn).
* (T292612) Added language support for S'gaw Karen (ksw).
* (T293656) Added language support for Farefare (gur).

=== Breaking changes in 1.38 ===
* (T291008) The IP class, deprecated since 1.35 in favor of the IPUtils library,
  has been removed. The IP related regexes which were also deprecated in favor
  of the IPUtils library were also removed, IPUtils::RE_* should be used
  instead.
* LinkCache::singleton(), deprecated since 1.28, has been removed.
* RepoGroup::singleton(), ::destroySingletons() and setSingleton(), all
  deprecated since 1.34, have been removed.
* The following methods from FileDeleteForm were removed:
  - ::__construct (the class is no longer newable)
  - ::execute()
  - ::haveDeletableFile()
  Use FileDeleteAction instead.
* MessageCache::singleton(), deprecated since 1.34, has been removed.
* LockManagerGroup::singleton() and ::destroySingletons(), both deprecated since
  1.34, have been removed.
* FileBackendGroup::singleton() and ::destroySingletons(), both deprecated since
  1.35, have been removed.
* TemplateParser used to support disabling the cache with a boolean parameter
  in its constructor. This was deprecated in 1.35 and has now been removed.
* The ArticleUndeleteLogEntry hook, deprecated in 1.37, was removed.
* The BeforeResetNotificationTimestamp hook, deprecated in 1.37, was removed.
* The global function mimeTypeMatch() has been removed without a deprecation
  process.
* The following JavaScript mw.config keys have been removed:
  - $wgCookiePrefix
  - $wgCookieDomain
  - $wgCookiePath
  - $wgCookieExpiration
  Use mw.cookie from the mediawiki.cookie module instead.
* The signature of PageUpdater::markAsRevert method was changed. It has never
  been used outside of MediaWiki core.
* If you want to use interwiki titles with HTMLTitleTextField, you now need
  to pass 'interwiki' => true. In 1.37, the default behavior was to let
  interwiki title through by default, logging a deprecation warning.
* The `UndeleteForm::undelete` hook, deprecated in 1.37, was removed.
* BagOStuff::setDebug(), deprecated since 1.36, has been removed.
* The `jquery.mw-jump` ResourceLoader module was removed.
* The `wgForeignUploadTargets` and `wgEnableUploads` configuration values were
  removed from mw.config. They had previously been documented as being included
  for internal use by the mediawiki.ForeignUpload module.
* Several Skin methods, which have emitted deprecation warnings since 1.36, have
  been removed. These include:
  - Skin::privacyLink()
  - Skin::aboutLink()
  - Skin::disclaimerLink()
    For these, instead use Skin::footerLink() to alter footer links.
  - Skin::getLogo()
    For this, use ResourceLoaderSkinModule::getAvailableLogos() instead.
  - Skin::getIndicatorsHTML()
    For this, use Skin::getIndicatorsData() instead.
  - Skin::subPageSubtitle()
    For this, use Skin::prepareSubtitle() instead.
  - Skin::makeVariablesScript()
    For this, use ResourceLoader::makeInlineScript() instead.
  - Skin::getAllowedSkins()
  - Skin::getSkinNames()
    For these, use SkinFactory::getAllowedSkins() or ::getInstalledSkins().
  - Skin::makeUrl()
  - Skin::getSearchLink()
  - Skin::mainPageLink()
    For these, use Skin::getSearchPageTitle() instead.
* Parser::getUser and ::mUser, as well as ParserOptions::getUser, deprecated
  since 1.37, has been removed.
* Parser::$mStripState, deprecated in 1.35, has been made private.  Use
  Parser::getStripState() instead.
* The following deprecated features in blocks were removed:
  - DatabaseBlock constructor 'byText' property with blocker's name, use 'by'
    property with UserIdentity value instead.
  - DatabaseBlock constructor 'by' property with blocker's ID, use 'by' property
    with UserIdentity value instead.
  - DatabaseBlock::isWhitelistedFromAutoblocks, use ::isExemptedFromAutoblocks.
  - DatabaseBlock::setBlocker now only accepts UserIdentity.
  - AbstractBlock::getTargetAndType and ::getTarget, use ::getTargetName,
    ::getTargetUserIdentity and ::getType instead
* The following functions, emitting deprecations since 1.37, have been removed:
  - Title::isWatchable()
  - WatchAction::doWatchOrUnwatch(), WatchAction::doWatch(),
    WatchAction::doUnwatch(), WatchAction::getWatchToken()
  - User::isWatched(), User::isTempWatched(), User::addWatch(),
    User::removeWatch()
* ParserOptions::setTidy() that had no effect and was deprecated since 1.35
  has been removed.
* The constant ApiBase::PARAM_VALUE_LINKS, deprecated since 1.35 has been
  removed.
* UserLoadOptions, UserSaveOptions and UserResetAllOptions hooks, deprecated
  since 1.37, were removed.
* The experimental FileJournal system has been removed without deprecation. This
  includes the FileJournal abstract class, its implementation classes
  DBFileJournal and NullFileJournal, various minor getters and setters, and
  the option for the wiki configuration $wgFileBackends.
* The return values for each `bind` function in checkboxHack.js has been changed
  from an object to a function. In addition, the `unbind` function has been
  removed. A deprecation process was assumed unnecessary as there were no known
  usages.
* File::getUser, ::getImageSize, ArchivedFile::getRawDescription, ::getUser,
  ::getRawUser and ::getRawDescription, deprecated since 1.37, has been removed.
* ShellboxHttpClient class has been removed without deprecation. It was an
  internal class used by ShellboxClientFactory.
* The following User methods, deprecated in 1.37, have been removed:
  - ::resetIdByNameCache,
  - ::getStubThreshold,
  - ::matchEditTokenNoSuffix,
  - ::changeableByGroup,
  - ::changeableGroups,
  - ::isAllowUsertalk
* Http::$httpEngine, deprecated since 1.34, has been removed. The only available
  HTTP engine is now Guzzle. CurlHttpRequest and PhpHttpRequest classes were
  removed.
* Parser option enableLimitReport was deprecated. The report is now generated
  post-parse and can be included by providing 'includeLimitReport' option
  to ParserOutput::getText. Thus, ParserOptions::enableLimitReport and
  ::getEnableLimitReport methods were deprecated.
* …

=== Deprecations in 1.38 ===
* The MWGrants class is deprecated in favor of the new GrantsInfo and
  GrantsLocalization services.
* The global functions wfReadOnly() and wfReadOnlyReason() have been
  deprecated in favor of the ReadOnlyMode service.
* PageProps::getInstance() has been deprecated. Use
  MediaWikiServices::getPageProps() instead.
* User::setOption(), deprecated since 1.35, now emits deprecation warnings.
* Linker::formatComment(), ::formatLinksInComment(), ::commentBlock() and
  revComment() were deprecated. Use the new CommentFormatter service.
* Skin::getSkinStylePath now triggers deprecation warnings. Direct string path
  should be used instead.
* DatabaseBlock::purgeExpired(), deprecated since 1.36, now emits
  deprecation warnings.
* SkinTemplate::getPersonalToolsList(), deprecated since 1.35, now emits
  deprecation warnings.
* The following methods from the User class now trigger deprecation warnings:
   - ::blockedBy
   - ::getBlockId
* Content::getParserOutput and AbstractContent::fillParserOutput
  was hard-deprecated, use ContentRenderer::getParserOutput instead.
  Extensions defining a content model should
  override ContentHandler::fillParserOutput.
* Article::doDelete() was deprecated. Use WikiPage::doDeleteArticleReal if
  you only need to delete the article. If you also need things to happen
  with OutputPage, you may want to check the hooks in DeleteAction instead.
* Instantiating the MessageContent class now emits deprecation notices.
* Message::content() now triggers deprecation warnings.
* The following methods from the ParserOutput class now emit deprecation
  warnings:
   - ::hideNewSection()      - use ::setHideNewSection()
   - ::preventClickjacking() - use ::{get,set}PreventClickjacking()
   - ::getProperty()         - use ::getPageProperty()
   - ::setProperty()         - use ::setPageProperty()
   - ::unsetProperty()       - use ::unsetPageProperties()
   - ::getProperties()       - use ::getPageProperties()
   - ::getCategoryLinks()    - use ::getCategoryNames()
   - ::setCategoryLinks()    - use ::setCategories()
   - ::addTrackingCategory() - use Parser::addTrackingCategory()
                               or TrackingCategories::addTrackingCategory()
   - ::addWarning()          - use ::addWarningMsg()
* The following methods from the ParserOutput class were deprecated:
   - ::getFlag() - use ::getOutputFlag()
   - ::setFlag() - use ::setOutputFlag()
   - ::getAllFlags() - this method is now marked @internal
* The following methods were deprecated; use ::setPreventClickjacking(..)
  instead:
   - OutputPage::preventClickjacking()
   - OutputPage::allowClickjacking()
   - ImageHistoryList::preventClickjacking()
   - ImageHistoryPseudoPager::preventClickjacking()
   - ContribsPager::preventClickjacking()
* Collation::singleton() and ::factory() now trigger deprecation warnings.
* The following methods in MWNamespace, all deprecated since 1.34, now emit
  deprecation warnings:
  - isTalk()
  - exists()
  - subjectEquals()
  - getCanonicalNamespaces()
  - getCanonicalName()
  - getCanonicalIndex()
  - getValidNamespaces()
  - isContent()
  - hasSubpages()
  - getContentNamespaces()
* Return values in the parameter $pageLang of the hook PageContentLanguage
  with other types than a Language object, deprecated since 1.33, now emmits
  deprecation warnings.
* All external access to ParserOutput and CacheTime classes properties will now
  emit deprecation warnings. Use getters and setters instead.
* The PageArchive class has had several methods deprecated. The replacements
  are as follows:
   - Use UndeletePage instead of ::undeleteAsUser(), ::getFileStatus() and
     ::getRevisionStatus().
   - Use the respective methods of the new ArchivedRevisionLookup service
     instead of ::listRevisions, ::getRevisionRecordByTimestamp,
     ::getArchivedRevisionRecord, ::getPreviousRevisionRecord and
     ::getLastRevisionId.
   - Use ArchivedRevisionLookup::hasArchivedRevisions instead of ::isDeleted.
* LinkCache::addGoodLinkObj() has been hard deprecated.
* …

=== Other changes in 1.38 ===
* The following things were changed in the file deletion form:
   - The name and ID of the submit button are now `wpConfirmB`, not
      `mw-filedelete-submit`
   - The ID of the form is now `deleteconfirm`, not `mw-img-deleteconfirm`
   - The `mw-filedelete-editreasons` class was replaced with
     `mw-delete-editreasons`
  The goal of these changes is to make the HTML more similar to that of
  normal page deletion.
* ParserOptions created with ::newFrom* or ::newCanonical are now identical.
* …

== Compatibility ==

MediaWiki 1.38 requires PHP 7.3.19 or later and the following PHP extensions:

* ctype
* dom
* fileinfo
* iconv
* intl
* json
* mbstring
* xml

MySQL/MariaDB is the recommended DBMS. PostgreSQL or SQLite can also be used,
but support for them is somewhat less mature.

The supported versions are:

* MySQL 5.5.8 or later
* PostgreSQL 9.4 or later
* SQLite 3.8.0 or later

== Online documentation ==
Documentation for both end-users and site administrators is available on
MediaWiki.org, and is covered under the GNU Free Documentation License (except
for pages that explicitly state that their contents are in the public domain):

       https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation

== Mailing list ==
A mailing list is available for MediaWiki user support and discussion:

       https://lists.wikimedia.org/mailman/listinfo/mediawiki-l

A low-traffic announcements-only list is also available:

       https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce

It's highly recommended that you sign up for one of these lists if you're
going to run a public MediaWiki, so you can be notified of security fixes.

== IRC help ==
There's usually someone online in #mediawiki on irc.libera.chat.