This release contains a variety of fixes from 8.1.9. For information about new features in the 8.1 major release, see Section E.95, « Release 8.1 ».
A dump/restore is not required for those running 8.1.X. However, if you are upgrading from a version earlier than 8.1.2, see Section E.93, « Release 8.1.2 ».
Prevent index corruption when a transaction inserts rows and then aborts close to the end of a concurrent VACUUM on the same table (Tom)
Make CREATE DOMAIN ... DEFAULT NULL work properly (Tom)
Allow the interval data type to accept input consisting only of milliseconds or microseconds (Neil)
Speed up rtree index insertion (Teodor)
Fix excessive logging of SSL error messages (Tom)
Fix logging so that log messages are never interleaved when using the syslogger process (Andrew)
Fix crash when log_min_error_statement logging runs out of memory (Tom)
Fix incorrect handling of some foreign-key corner cases (Tom)
Prevent REINDEX and CLUSTER from failing due to attempting to process temporary tables of other sessions (Alvaro)
Update the time zone database rules, particularly New Zealand's upcoming changes (Tom)
Windows socket improvements (Magnus)
Suppress timezone name (%Z) in log timestamps on Windows because of possible encoding mismatches (Tom)
Require non-superusers who use /contrib/dblink to use only password authentication, as a security measure (Joe)