PHP 8.4.20 Release Candidate 1 focuses on addressing critical stability issues within the Opcache JIT compiler, including incorrect arithmetic results and infinite loops. It also patches memory leaks related to the FFI and Sysvshm functions, preventing resource leaks during symbol resolution failures and variable corruption. Core extensions such as DOM, OpenSSL, and PCRE have been updated to mitigate parser issues and undefined behavior crashes. Production environments are advised to wait for the final release to avoid potential side effects from these important fixes
PHP 8.4.20 RC1 released
PHP 8.4.20 targets serious stability issues within the Opcache JIT compiler that previously caused incorrect arithmetic results and infinite loops. Memory leaks affecting FFI and Sysvshm functions get patched to stop resources from leaking during symbol resolution failures or variable corruption. Core extensions like DOM, OpenSSL, and PCRE receive specific updates to prevent parser mangles and undefined behavior crashes under edge cases. Production environments should wait for the final release to ensure these critical fixes do not introduce unexpected side effects.
