Add `actor` table and code to start using it

[lhc/web/wiklou.git] / RELEASE-NOTES-1.31

diff --git a/RELEASE-NOTES-1.31 b/RELEASE-NOTES-1.31
index ed1c4df..f79747a 100644 (file)
--- a/RELEASE-NOTES-1.31
+++ b/RELEASE-NOTES-1.31
@@ -51,6 +51,18 @@ production.
 * Style tags with a 'data-mw-deduplicate' attribute will be deduplicated as a
   ParserOutput::getText() post-cache transformation. This may be disabled by
   passing 'deduplicateStyles' => false to that method.
+* The identity of the logged-in or IP "actor" for logged actions is being moved
+  into a new actor table, with the rows in tables such as revision and logging
+  referring to the actor ID instead of storing the user ID and name/IP in
+  every row.
+  * This is currently gated by $wgActorTableSchemaMigrationStage. Most wikis
+    can set this to MIGRATION_NEW and run maintenance/migrateActors.php as
+    soon as any necessary extensions are updated.
+  * Most code accessing rows for logged actions from the database should use
+    the relevant getQueryInfo() methods to get the information needed to build
+    the SQL query. The ActorMigration class may also be used to get feature-flagged
+    information needed to access actor-related fields during the migration
+    period.
 
 === External library changes in 1.31 ===