## E.320. Release 8.0.20

Release date: 2009-02-02

This release contains a variety of fixes from 8.0.19. For information about new features in the 8.0 major release, see Section E.340.

### E.320.1. Migration to Version 8.0.20

A dump/restore is not required for those running 8.0.X. However, if you are upgrading from a version earlier than 8.0.6, see Section E.334.

### E.320.2. Changes

- Improve handling of URLs in `headline()` function (Teodor)

- Improve handling of overlength headlines in `headline()` function (Teodor)

- Prevent possible Assert failure or misconversion if an encoding conversion is created with the wrong conversion function for the specified pair of encodings (Tom, Heikki)

- Avoid unnecessary locking of small tables in `VACUUM` (Heikki)

- Fix uninitialized variables in `contrib/tsearch2`'s `get_covers()` function (Teodor)

- Make all documentation reference `pgsql-bugs` and/or `pgsql-hackers` as appropriate, instead of the now-decommissioned `pgsql-ports` and `pgsql-patches` mailing lists (Tom)

- Update time zone data files to tzdata release 2009a (for Kathmandu and historical DST corrections in Switzerland, Cuba)