PHPKonf: Istanbul PHP Conference 2017

PHP 5.2.1 Release Announcement

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.

Security Enhancements and Fixes in PHP 5.2.1:

The majority of the security vulnerabilities discovered and resolved can in most cases be only abused by local users and cannot be triggered remotely. However, some of the above issues can be triggered remotely in certain situations, or exploited by malicious local users on shared hosting setups utilizing PHP as an Apache module. Therefore, we strongly advise all users of PHP, regardless of the version to upgrade to 5.2.1 release as soon as possible. PHP 4.4.5 with equivalent security corrections is available as well.

The key improvements of PHP 5.2.1 include:

For users upgrading from PHP 5.0 and PHP 5.1, an upgrade guide is available here, detailing the changes between those releases and PHP 5.2.1.

For a full list of changes in PHP 5.2.1, see the ChangeLog.

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