to all supported versions of the PostgreSQL database system, which
includes minor versions 9.3.2, 9.2.6, 9.1.11, 9.0.15, and 8.4.19. This
update fixes three serious data-loss bugs affecting replication and
database maintenance. All users are urged to update their
installations at the earliest opportunity.
URL: http://www.postgresql.org/about/news/1492/
Note that users of the hstore extension on version 9.3 must take an additional,
post upgrade step of running "ALTER EXTENSION hstore UPDATE" in each database
after update.
URL: http://www.postgresql.org/about/news/1487/
Major enhancements in PostgreSQL 9.3 include:
- Add materialized views
- Make simple views auto-updatable
- Add many features for the JSON data type, including operators and functions to extract elements from JSON values
- Implement SQL-standard LATERAL option for FROM-clause subqueries and function calls
- Allow foreign data wrappers to support writes (inserts/updates/deletes) on foreign tables
- Add a Postgres foreign data wrapper to allow access to other Postgres servers
- Add support for event triggers
- Add optional ability to checksum data pages and report corruption
- Prevent non-key-field row updates from blocking foreign key checks
- Greatly reduce System V shared memory requirements
URL: http://www.postgresql.org/docs/9.3/static/release-9-3.html
