+* IDatabase::nextSequenceValue() is no longer needed by any database backends
+ (formerly it was needed by PostgreSQL and Oracle), and is now deprecated.
+* (T146591) The lc_lang_key index on the l10n_cache table has been changed into a
+ PRIMARY KEY.
+* (T157227) bot_password.bp_user, change_tag.ct_log_id, change_tag.ct_rev_id,
+ page_restrictions.pr_user, tag_summary.ts_log_id, tag_summary.ts_rev_id and
+ user_properties.up_user have all been made unsigned on MySQL.
+* DB_SLAVE is deprecated. DB_REPLICA should be used instead.