On the PHP.net site they've announced the release of version 5.4.15 & 5.3.25 (fully released after some propagation issues with the mirror servers).

The PHP development team announces the immediate availability of PHP 5.4.15 and PHP 5.3.25. These releases fix about 10 bugs aswell as upgrading the bundled libmagic library. All users of PHP are encouraged to upgrade to PHP 5.4.15. [...] The list of changes are recorded in the ChangeLog.

Changes include updates to debug_backtrace for a segfault issue, a change to the dns_get_record function for negative length values and a fix for a fd leak on Solaris. You can download this latest release from the downloads section (source) or the Windows QA site (binaries).

As is mentioned on the main PHP.net site today PHP 5.4.14 and 5.3.24 have been released:

The PHP development team announces the immediate availability of PHP 5.4.14 and PHP 5.3.24. These releases fix about 10 bugs aswell as upgrading the bundled PCRE library. All users of PHP are encouraged to upgrade to PHP 5.4.14.

Users are encouraged to update to this latest release. You can find the latest version either on the downloads page (source) or the Windows site (binaries). If you're curious what all changed in this release, check out the Changelog.

As is mentioned in this new post to PHP.net today, they've released the latest alpha for the PHP 5.5.x series - PHP 5.5.0alpha6 - for testing. This is not a stable release so do not use it in production by any means.

The PHP development team announces the release of PHP 5.5.0alpha6. This release fixes some bugs from alpha5. It also serves as a delay for our next release, beta1, integrating ZendOptimizer+ OPCode cache which is not ready yet to be merged. All users of PHP are encouraged to test this version carefully, and report any bugs in the bug tracking system.

Updates in this release include a fix for a bug where uninitialized ++$foo->bar; does not cause a notice, an update to the bundled PCRE 8.32, and a bugfix in ext/sockets where sendmsg/recvmsg shutdown handler causes segfault. You can get the complete list of changes here and get the download over on this site (Windows users here).

On PHP.net today they've announced the release of PHP 5.4.12 and 5.3.22, the latest versions of the two current release branches.

The PHP development team announces the immediate availability of PHP 5.4.12 and PHP 5.3.22. These releases fix about 10 bugs. All users of PHP are encouraged to upgrade to PHP 5.4.12.

It's a bug fix release, but everyone's encouraged to update. It corrects things in core, FPM, sqlite, PDO_OCI, the Zend Engine and date functionality (and a bit more). You can get this latest version from the downloads page or windows.php.net for the Windows binaries. If you'd like to see the full list of issues fixed, check out the Changelog.

On PHP.net the project has posted about the release of the latest versions in the PHP 5.4.x and 5.3.x series - PHP 5.4.11 and 5.3.21:

The PHP development team announces the immediate availability of PHP 5.4.11 and PHP 5.3.21. These releases fix about 10 bugs. All users of PHP are encouraged to upgrade to PHP 5.4.

You can check out the Changelog if you're interested in what bugs were corrected by this release. The downloads are available via the main downloads page (or here for the Windows users out there).

PHP.net has announced the release of PHP 5.5 alpha3, the latest alpha in this upcoming release. This is only a preview release and should not be considered (in any way, shape or form) as usable in production.

The PHP development team announces the release of PHP 5.5.0alpha3. This release adds few features and fix some bugs from alpha2. All users of PHP are encouraged to test this version carefully, and report any bugs in the bug tracking system.

There's a few new things that have come with this update including the "Generator::throw()" method, a few additional cURL methods, Max-Age attribute support in setcookie and some bugfixes in mysqlnd and the PHP core code (see here for the full list). Please download this latest alpha and test it out in your application. Windows binaries are here.

On PHP.net site today, they've announced the latest releases in the PHP 5.3.x and 5.4.x series - PHP 5.3.19 and PHP 5.4.9:

The PHP development team announces the immediate availability of PHP 5.4.9 and PHP 5.3.19. These releases fix over 15 bugs. All users of PHP are encouraged to upgrade to PHP 5.4.9, or at least 5.3.19. For source downloads of PHP 5.4.9 and PHP 5.3.19 please visit our downloads page, Windows binaries can be found on windows.php.net/download/.

You can view a complete list of changes in this edition's Changelog (including references to both core and extension bugfixes).

The latest Release Candidates in the PHP 5.3.x and 5.4.x series and are available for download and testing - PHP 5.3.18RC1 and PHP 5.4.8RC1:

We've released PHP 5.3.18RC1 and 5.4.8RC1. This is a regular bugfix release, the full list of issues fixed can be found in the NEWS files. Please test and report if anything is broken. If no critical issues is found in this RC, the final version will be released in two weeks.

Bugs fixed in this release include issues with is_callable, the catching of an exception in an __autoload call, fixes for the SOAP an dSPL extensions as well as updates to the CLI server (501 response, PATCH support) and changes to the DOM, FPM and cURL extensions. You can download these latest Candidates and get testing here:

5.3.18RC1:

• http://downloads.php.net/johannes/php-5.3.18RC1.tar.bz2
• http://downloads.php.net/johannes/php-5.3.18RC1.tar.gz

5.4.8RC1:

• http://downloads.php.net/stas/php-5.4.8RC1.tar.bz2
• http://downloads.php.net/stas/php-5.4.8RC1.tar.gz

Windows binaries for both as always are at: http://windows.php.net/qa/

On the PHP.net site they've announced the latest releases of the language - PHP 5.4.7 and 5.3.17:

The PHP development team announces the immediate availability of PHP 5.4.7 and PHP 5.3.17. These releases fix over 20 bugs. All users of PHP are encouraged to upgrade to PHP 5.4.7, or at least 5.3.17. Key enhancements in these releases include bugs #62955 and #62460.

If you'd like to see the full list of changes you can see them in the Changelog. To download this latest release you can head over here: source downloads, Windows downloads.

The PHP.net site has announced the latest versions of PHP are now available for download - PHP 5.4.6 and 5.3.16:

The PHP development team announces the immediate availability of PHP 5.4.6 and PHP 5.3.16. These releases fix over 20 bugs. All users of PHP are encouraged to upgrade to PHP 5.4.6, or at least 5.3.16. For source downloads of PHP 5.4.6 and PHP 5.3.16 please visit our downloads page, Windows binaries can be found on windows.php.net/download/. The list of changes are recorded in the ChangeLog.

Bugs fixed in these two releases relate to things like bugs that were causing crashes in auto_prepend_file on the CLI web server, a segfault when DateInterval was extended, a return type on PDO and a fix for the count() call on an IteratorIterator. See the ChangeLog for the full list.