E.85. Release 9.2.13
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## E.85. Release 9.2.13

Release date: 2015-06-12

This release contains a small number of fixes from 9.2.12. For information about new features in the 9.2 major release, see Section E.98.

### E.85.1. Migration to Version 9.2.13

A dump/restore is not required for those running 9.2.X.

However, if you are upgrading from a version earlier than 9.2.11, see Section E.87.

### E.85.2. Changes

- Fix rare failure to invalidate relation cache init file (Tom Lane)

  With just the wrong timing of concurrent activity, a `VACUUM FULL` on a system catalog might fail to update the “init file” that's used to avoid cache-loading work for new sessions. This would result in later sessions being unable to access that catalog at all. This is a very ancient bug, but it's so hard to trigger that no reproducible case had been seen until recently.

- Avoid deadlock between incoming sessions and `CREATE/DROP DATABASE` (Tom Lane)

  A new session starting in a database that is the target of a `DROP DATABASE` command, or is the template for a `CREATE DATABASE` command, could cause the command to wait for five seconds and then fail, even if the new session would have exited before that.

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