Updates for all maintained versions of PostgreSQL are available today:
8.3.4, 8.2.10, 8.1.14, 8.0.18 and 7.4.22. These releases fix more than
thirty minor issues reported and patched over the last three months. As
some of these issues carry a risk of data loss, administrators of
production applications should upgrade in their next possible scheduled
downtime.
Additionally, this minor release also contains updates for the following
timezones to support changes in local laws: Argentina, Bahamas, Brazil,
Mauritius, Morocco, Pakistan, Palestine, and Paraguay. Users in these
timezones should plan to upgrade as soon as possible to avoid improper
calculation of daylight savings time.
Issues fixed include autovacuum crashes reported by several users, two
Heap Only Tuple bugs, a foreign key failure condition, a too-small lock
address space, two Write Ahead Log bugs, several planner mistakes, and
numerous "corner condition" bugs. See the release notes for more details.
As with other minor releases, users are not required to dump and reload
their database in order to apply this update release; you may simply
shut down PostgreSQL and update its binaries. Users skipping more than
one update may need to check the release notes for extra, post-update
steps. As previously announced, only versions 8.2.10 and 8.3.4 of the
Windows binaries are being released, as we no longer support 8.0 and 8.1
on Windows.
Release Notes
http://www.postgresql.org/docs/current/static/release.html
Source Code
http://www.postgresql.org/ftp/source
Binaries
http://www.postgresql.org/ftp/binary