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Update changelog for #22122

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Sam Davies 2015-11-01 17:52:03 -03:00
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activerecord/CHANGELOG.md
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@ -1,3 +1,8 @@
* Use advisory locking to raise a ConcurrentMigrationError instead of
attempting to migrate when another migration is currently running.
*Sam Davies*
* Added `ActiveRecord::Relation#left_outer_joins`.
Example: