Anonymous committed 2777844

update 4.0 release notes to reflect the removal of auto explain.

Comments (0)

Files changed (1)


 *   Remove IdentityMap.
+*   Remove automatic execution of EXPLAIN queries. The option `active_record.auto_explain_threshold_in_seconds` is no longer used and should be removed.
 *   Adds `ActiveRecord::NullRelation` and `ActiveRecord::Relation#none` implementing the null object pattern for the Relation class.
 *   Added `create_join_table` migration helper to create HABTM join tables.