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== MediaWiki 1.29 ==
THIS IS NOT A RELEASE YET
MediaWiki 1.29 is an alpha-quality branch and is not recommended for use in
production.
=== Configuration changes in 1.29 ===
* Default cookie expiration time has been reduced to 30 days. Login cookie expiration time is
kept at 180 days.
* A new configuration variable has been added: $wgCookieSetOnAutoblock. This
determines whether to set a cookie when a user is autoblocked. Doing so means
that a blocked user, even after logging out and moving to a new IP address,
will still be blocked.
* The resetpassword right and associated password reset capture feature has
been removed.
* The $error parameter to the EmailUser hook should be set to a Status object
or boolean false. This should be compatible with at least MediaWiki 1.23 if
not earlier. Returning a raw HTML string is now deprecated.
* The $message parameter to the ApiCheckCanExecute hook should be set to an
ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a
code for ApiBase::parseMsg() will no longer work.
* ApiBase::$messageMap is no longer public. Code attempting to access it will
result in a PHP fatal error.
=== New features in 1.29 ===
* (T5233) A cookie can now be set when a user is autoblocked, to track that user if
they move to a new IP address. This is disabled by default.
=== External library changes in 1.29 ===
==== Upgraded external libraries ====
* Updated QUnit from v1.22.0 to v1.23.1.
==== New external libraries ====
==== Removed and replaced external libraries ====
=== Bug fixes in 1.29 ===
=== Action API changes in 1.29 ===
* Submitting sensitive authentication request parameters to action=clientlogin,
action=createaccount, action=linkaccount, and action=changeauthenticationdata
in the query string is now an error. They should be submitted in the POST
body instead.
* The capture option for action=resetpassword has been removed
* action=clearhasmsg now requires a POST.
* (T47843) API errors and warnings may be requested in non-English languages
using the new 'errorformat', 'errorlang', and 'errorsuselocal' parameters.
* API error codes may have changed. Most notably, errors from modules using
parameter prefixes (e.g. all query submodules) will no longer be prefixed.
* action=emailuser may return a "Warnings" status, and now returns 'warnings' and
'errors' subelements (as applicable) instead of 'message'.
* action=imagerotate returns an 'errors' subelement rather than 'errormessage'.
* action=move now reports errors when moving the talk page as an array under
key 'talkmove-errors', rather than using 'talkmove-error-code' and
'talkmove-error-info'. The format for subpage move errors has also changed.
* action=rollback no longer returns a "messageHtml" property on errors. Use
errorformat=html if you're wanting HTML formatting of messages.
* action=upload now reports optional stash failures as an array under key
'stasherrors' rather than a 'stashfailed' text string.
* action=watch reports 'errors' and 'warnings' instead of a single 'error'.
=== Action API internal changes in 1.29 ===
* New methods were added to ApiBase to handle errors and warnings using i18n
keys. Methods for using hard-coded English messages were deprecated:
* ApiBase::dieUsage() was deprecated
* ApiBase::dieUsageMsg() was deprecated
* ApiBase::dieUsageMsgOrDebug() was deprecated
* ApiBase::getErrorFromStatus() was deprecated
* ApiBase::parseMsg() was deprecated
* ApiBase::setWarning() was deprecated
* ApiBase::$messageMap is no longer public. Code attempting to access it will
result in a PHP fatal error.
* The $message parameter to the ApiCheckCanExecute hook should be set to an
ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a
code for ApiBase::parseMsg() will no longer work.
* UsageException is deprecated in favor of ApiUsageException. For the time
being ApiUsageException is a subclass of UsageException to allow things that
catch only UsageException to still function properly.
* If, for some strange reason, code was using an ApiErrorFormatter instead of
ApiErrorFormatter_BackCompat, note that the result format has changed and
various methods now take a module path rather than a module name.
* ApiMessageTrait::getApiCode() now strips 'apierror-' and 'apiwarn-' prefixes
from the message key, and maps some message keys for backwards compatibility.
=== Languages updated in 1.29 ===
MediaWiki supports over 350 languages. Many localisations are updated
regularly. Below only new and removed languages are listed, as well as
changes to languages because of Phabricator reports.
==== No fallback for Ukrainian ====
* (T39314) The fallback from Ukrainian to Russian was removed. The Ukrainian
language will now use the default fallback language: English. When a translation
to Ukrainian is not available, an English string will be shown.
=== Other changes in 1.29 ===
* Database::getSearchEngine() (deprecated in 1.28) was removed. Use
SearchEngineFactory::getSearchEngineClass() instead.
* $wgSessionsInMemcached (deprecated in 1.20) was removed. No replacement is
required as all sessions are stored in Object Cache now.
* MWHttpRequest::execute() should be considered to return a StatusValue; the
Status return type is deprecated.
== Compatibility ==
MediaWiki 1.29 requires PHP 5.5.9 or later. There is experimental support for
HHVM 3.6.5 or later.
MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
support for them is somewhat less mature. There is experimental support for
Oracle and Microsoft SQL Server.
The supported versions are:
* MySQL 5.0.3 or later
* PostgreSQL 8.3 or later
* SQLite 3.3.7 or later
* Oracle 9.0.1 or later
* Microsoft SQL Server 2005 (9.00.1399)
== Upgrading ==
1.29 has several database changes since 1.28, and will not work without schema
updates. Note that due to changes to some very large tables like the revision
table, the schema update may take quite long (minutes on a medium sized site,
many hours on a large site).
If upgrading from before 1.11, and you are using a wiki as a commons
repository, make sure that it is updated as well. Otherwise, errors may arise
due to database schema changes.
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, 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.
For notes on 1.28.x and older releases, see HISTORY.
== 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.freenode.net.
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