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
+MySQL/MariaDB 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:
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.
+See the file UPGRADE for more detailed upgrade instructions, including
+important information when upgrading from versions prior to 1.11.
For notes on 1.28.x and older releases, see HISTORY.
script. This will update the searchindex table for those pages that
contain double-byte latin characters.
+== Upgrading from 1.10 or earlier ==
+
+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.
+
== Upgrading from 1.8 or earlier ==
MediaWiki 1.9 and later no longer keep default localized message text
$wgLocalTZoffset was in hours, it is now using minutes.
+If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
+new database fields are filled with data.
+
== Upgrading from 1.5 or earlier ==
Major changes have been made to the schema from 1.4.x. The updater
'upgrade1_5.php', can do this -- run it prior to 'update.php' or
the web upgrader.
-NOTE that upgrade1_5.php does not work properly with recent version
+NOTE that upgrade1_5.php does not work properly with recent versions
of MediaWiki. If upgrading a 1.4.x wiki, you should upgrade to 1.5
first. upgrade1_5.php has been removed from MediaWiki 1.21.