MediaWiki 1.31 is an alpha-quality branch and is not recommended for use in
production.
+=== Important pre-upgrade notes for 1.31 ===
+* If you're using MySQL, SQLite, or MSSQL, are not using update.php to apply
+ schema changes, and cannot have downtime to run migrateArchiveText.php and
+ apply patch-drop-ar_text.sql manually, you'll have to apply a default value
+ to the ar_text and ar_flags columns of the archive table or make those
+ columns nullable before upgrading to MediaWiki 1.31.
+ maintenance/archives/patch-nullable-ar_text.sql shows how to do this for MySQL.
+
=== Configuration changes in 1.31 ===
* $wgEnableAPI and $wgEnableWriteAPI are now deprecated and will be removed in
a future version. The API is now considered to be stable, secure and
was configured with 'any'.
=== New features in 1.31 ===
+* (T76554) User sub-pages named ….json are now protected in the same way that ….js
+ and ….css pages are, so that configuration options can safely be placed there.
* Wikimedia\Rdbms\IDatabase->select() and similar methods now support
joins with parentheses for grouping.
* As a first pass in standardizing dialog boxes across the MediaWiki product,