The PHP development team is proud to announce the release of PHP 5.1.2. This release combines small feature enhancements with a fair number of bug fixes and addresses three security issues. All PHP 5 users are encouraged to upgrade to this release. Some of the key changes of PHP 5.1.2 include: HTTP Response Splitting has been addressed in ext/session and in the header() function. Fixed format string vulnerability in ext/mysqli. Fixed possible cross-site scripting problems in certain error conditions. Hash & XMLWriter extensions added and enabled by default. Upgraded OCI8 extension. Over 85 various bug fixes. Further details about this release can be found in the release announcement and the full list of changes is available in the PHP 5 ChangeLog.

PHP.NET