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Version 9.0 Beta 1 Available Now

From: Josh Berkus <josh(at)postgresql(dot)org>
To: pgsql-announce(at)postgresql(dot)org
Subject: Version 9.0 Beta 1 Available Now
Date: 2010-05-03 15:03:49
Message-ID: 4BDEE5D5.6080505@postgresql.org (view raw or flat)
Thread:
Lists: pgsql-announce
May 3, 2010:  The first beta release of PostgreSQL version 9.0 is now 
available.  Version 9.0 is the first version of PostgreSQL to include 
built-in real-time binary database replication with query scale-out, 
consisting of two features, Hot Standby and Streaming Replication. 
Combined with its other major features, version 9.0 will expand adoption 
of PostgreSQL by new users and in new types of applications.

This release is a beta version.  This means that it is expected to have 
bugs, issues, and missing documentation.  9.0 beta is being released so 
that our users will find those issues and allow eliminating them before 
the final release.  All PostgreSQL users are requested to download and 
test version 9.0 to help us produce a timely and more trouble-free 9.0 
release.

In this version, a number of new features will allow developers and DBAs 
to broaden their use of PostgreSQL, including:

* Hot Standby and Streaming Replication
* 64-bit support on Windows
* Improved LISTEN/NOTIFY allows fast internal database event messaging
* Anonymous procedure blocks with the DO statement
* Conditional and per-column triggers
* Support for Python 3 in in PL/Python and numerous PL/Perl improvements
* Uniqueness constraints for non-scalar data (exclusion constraints)
* Improved key-value data support
* Automatic join removal, optimizing for ORM-generated queries

The full list of over 200 changes is available in the release notes:
http://developer.postgresql.org/pgdocs/postgres/release-9-0.html

Users interested in taking advantage of these new features should 
download and test porting their applications to PostgreSQL 9.0 beta now. 
Because version 9.0 includes many new major features as well as 
overhauled internal code, such as changes to the syntax allowed by the 
PL/PgSQL language, backwards compatiblility issues are expected.

Source code, as well as binary installers for many platforms, is 
available from the PostgreSQL Web Site:

* Source:
   http://www.postgresql.org/ftp/source/V9.0beta1
* Windows Installer:
   http://www.enterprisedb.com/products/pgdownload.do
* Binaries for other platforms:
   http://www.postgresql.org/ftp/binary/v9.0beta1
* Release Notes:
   http://developer.postgresql.org/pgdocs/postgres/release-9-0.html
* Participating in Testing:
   http://www.postgresql.org/developer/beta

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