= 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.

* $wgDjvuDump, $wgDjvuRenderer, $wgDjvuTxt now only accept explicit path.

'djvudump' will not work and must be changed to '/usr/bin/djvudump'

for example.

* …

==== 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 2.13.4.

* Updated doctrine/dbal for PHP >= 7.3 from 3.0.0 to 3.1.3.

* 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).

* (T294729) Added language support for Pa'O (blk).

=== 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 hard deprecated User methods have been removed:

- ::resetIdByNameCache,

- ::getStubThreshold,

- ::matchEditTokenNoSuffix,

- ::changeableByGroup,

- ::changeableGroups,

- ::isAllowUsertalk,

- ::getRights

* 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 'includeDebugInfo' 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.