CascadiaPHP 2024

PHP 5.5.29 Release Announcement

The PHP development team announces the immediate availability of PHP 5.5.29. This is a security release. Many security-related issues were fixed in this release. All PHP 5.5 users are encouraged to upgrade to this version.

For source downloads of PHP 5.5.29 please visit our downloads page, Windows binaries can be found on The list of changes is recorded in the ChangeLog.

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