Jordi Gironés

The PHP development team announces the immediate availability of
PHP 5.5.0alpha2. This release adds new features and fix some bugs from alpha1.
All users of PHP are encouraged to test this version carefully,
and report any bugs in the bug tracking system.

THIS IS A DEVELOPMENT PREVIEW – DO NOT USE IT IN PRODUCTION!

PHP 5.5.0 Alpha 2 comes with new features and improvements such as (incomplete list) :

• Support for using empty() on the result of function calls and
  other expressions,
• Systemtap support by enabling systemtap compatible dtrace probes on
  linux,
• Optimized access to temporary and compiled VM variables.
  8% less memory reads.

Please, note that this alpha version also introduces the ext/mysql depreciation.

You can read the full list of changes in the
NEWS file contained
in the release archive.

For source downloads of PHP 5.5.0 Alpha 2 please visit
the download page, Windows binaries
can be found on windows.php.net/qa/.

Thank you for helping us making PHP better.

Fuente: PHP 5.5.0 Alpha2 released

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The PHP development team announces the 6th
release candidate of PHP 5.4.
PHP 5.4 includes new language features and removes several legacy
(deprecated) behaviours. Windows binaries can be downloaded from the
Windows QA site.

THIS IS A RELEASE CANDIDATE – DO NOT USE IT IN PRODUCTION!.

This is the 6th release candidate. The release candidate phase is intended as
a period of bug fixing prior to the stable release. No new features should
be included before the final version of PHP 5.4.0.

The 6th release candidate focused on improving traits. Please test
them carefully and help us to identify bugs in
order to ensure that the release is solid and all things behave
as expected. Please take the time to test this release candidate
against your code base and report any problems that you encounter
to the QA mailing list and/or
the PHP bug tracker.

A complete list of changes since the last release candidate can be
found at NEWS

The next candidate will be released on Feb 2.

Fuente: PHP 5.4.0 RC6 released

Oracle announced that early access to new features of MySQL 5.6 is available for the community to test, deploy and provide feedback.

Fuente: Oracle Provides Early Access to MySQL 5.6 New Features

The PHP development team would like to announce the 8th
release candidate of PHP 5.4.
PHP 5.4 includes new language features and removes several legacy
(deprecated) behaviours. Windows binaries can be downloaded from the
Windows QA site.

THIS IS A RELEASE CANDIDATE – DO NOT USE IT IN PRODUCTION!
.

This is the 8th release candidate. The release candidate phase is
intended as a period of bug fixing prior to the stable release. No new
features should be included before the final version of PHP 5.4.0.

The 7th and 8th release candidates focus on fixing critical bugs and
security vulnerabilities, including:

• A buffer overflow in htmlspecialchars() and htmlentities()
  (bug #60965).
• Improving the max_input_vars configuration directive to check nested
  variables.

A complete list of changes since the last release candidate can be
found in the
NEWS
file.

We've received a lot of feedback that has helped to improve the
upcoming release of PHP 5.4.0. Please continue to help us to identify
bugs in order to ensure that the release is solid and all things behave
as expected by taking the time to test this release candidate against
your code base and reporting any problems that you encounter to
the QA mailing list and/or
the PHP bug tracker.

The next release candidate will be released on
March 1.

Fuente: PHP 5.4.0 RC8 released

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Fuente: Oracle Announces New MySQL 5.6 Development Milestone Release