Sudipto Mahmud Posted April 17 Share Posted April 17 Hello, Does WHMCS compatible for PHP 8.4? Is it safe to change PHP 8.3 to PHP 8.4? 0 Quote Link to comment Share on other sites More sharing options...
Damo Posted April 17 Share Posted April 17 For the current 9.x versions, no it does not. https://docs.whmcs.com/9-0/installation-guide/system-requirements/ 0 Quote Link to comment Share on other sites More sharing options...
WHMCS Technical Analyst WHMCS Ricardo Posted April 19 WHMCS Technical Analyst Share Posted April 19 On 4/17/2026 at 6:08 AM, Sudipto Mahmud said: Hello, Does WHMCS compatible for PHP 8.4? Is it safe to change PHP 8.3 to PHP 8.4? Hey Sudipto Mahmud! Damo is correct. At the moment, the series 9 only supports PHP 8.2 and PHP 8.3. So keeping with PHP 8.3 is suggested. 0 Quote Link to comment Share on other sites More sharing options...
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