CascadiaPHP 2024

PHP 5.5.4 Release Announcement

The PHP development team announces the immediate availability of PHP 5.5.4. This release fixes several bugs against PHP 5.5.3.

All PHP users are encouraged to upgrade to this release.

For source downloads of PHP 5.5.4 please visit our downloads page, Windows binaries can be found on The list of changes is recorded in the ChangeLog.

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