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It is time to say goodbye to PHP 5.1. As one of the earliest web development tools, we’ve supported PHP 5.1 for many years.

However, the technology behind PHP 5.1 is outdated and only a small number of websites still use it. We are officially end of life-ing our support for PHP 5.1. If you check the PHP.net end-of-life schedule, it's been dead upstream for almost 17 years.

It is time to say goodbye to PHP 4.4.

We will not be patching security vulnerabilities in PHP 4.4 beyond Jul 1, 2023. If you use PHP 4.4, watch for the date.