The PHP development team would like to announce the immediate availability of PHP 5.2.1. This release is a major stability and security enhancement of the 5.X branch, and all users are strongly encouraged to upgrade to it as soon as possible. Further details about this release can be found in the release announcement 5.2.1, the full list of changes is available in the ChangeLog PHP 5.

Among the security enhancements and bug fixes in this new release are:

• Prevent search engines from indexing the phpinfo() page.
• Fixed possible overflows and stack corruptions in the session extension.
• Fixed possible clobbering of super-globals in several code paths.
• Fixed a possible buffer overflow inside mail() and ibase_{delete,add,modify}_user() functions.
• and much more...

Ilia Alshanetsky (release manager for the PHP 5 series) also has posted some comments about the release to his blog.

Since the last release, there are over 20 different bug fixes resolving some annoying engine issues such as the tempval leak inside foreach(). We do not anticipate any regressions to be introduced by this RC, but I would still like to ask everyone to take a few minutes and test it against their code base. If you come across any issues please report them at http://bugs.php.net/.

You can download these latest files here:

• Bzipped version
• Gzipped version