THIS IS NOT A RELEASE YET
-MediaWiki is now using a "continuous integration" development model with
-quarterly snapshot releases. The latest development code is always kept
-"ready to run", and in fact runs our own sites on Wikipedia.
-
-Release branches will continue to receive security updates for about a year
-from first release, but nonessential bugfixes and feature developments
-will be made on the development trunk and appear in the next quarterly release.
-
-Those wishing to use the latest code instead of a branch release can obtain
-it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
+MediaWiki 1.18 is an alpha-quality branch and is not recommended for use in
+production.
=== Configuration changes in 1.18 ===
* The WantedPages::getSQL hook has been removed and replaced with
MediaWiki 1.18 requires PHP 5.2.3. PHP 4 is no longer supported.
-MySQL 3.23.x is no longer supported; some older hosts may need to upgrade.
-At this time we still recommend 4.0, but 4.1/5.0 will work fine in most cases.
+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 IBM
+DB2, Oracle and Microsoft SQL Server.
+
+The supported versions are:
+
+* MySQL 4.0 or later
+* PostgreSQL 8.3 or later
+* SQLite 3
== Upgrading ==
1.18 has several database changes since 1.17, and will not work without schema
updates.
-If upgrading from before 1.11, and you are using a wiki as a commons reposito-
-ry, make sure that it is updated as well. Otherwise, errors may arise due to
-database schema changes.
+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.
See the file UPGRADE for more detailed upgrade instructions.
-=== Caveats ===
-
-Some output, particularly involving user-supplied inline HTML, may not
-produce 100% valid or well-formed XHTML output. Testers are welcome to
-set $wgMimeType = "application/xhtml+xml"; to test for remaining problem
-cases, but this is not recommended on live sites. (This must be set for
-MathML to display properly in Mozilla.)
-
For notes on 1.17.x and older releases, see HISTORY.
-=== Online documentation ===
+== Online documentation ==
-Documentation for both end-users and site administrators is currently being
-built up 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):
+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):
http://www.mediawiki.org/wiki/Documentation
-=== Mailing list ===
+== Mailing list ==
-A MediaWiki-l mailing list has been set up distinct from the Wikipedia
-wikitech-l list:
+A mailing list is available for MediaWiki user support and discussion:
http://lists.wikimedia.org/mailman/listinfo/mediawiki-l
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 ===
+== IRC help ==
There's usually someone online in #mediawiki on irc.freenode.net.