🔗 What's new in PHP 8.6

PHP 8.6, set to release on November 19, 2026, introduces several important features including partial function application (PFA) and a new polling API. PFA lets developers create references to closures with some parameters pre-defined, streamlining code when combined with the pipe operator. The new polling API improves the handling of asynchronous processes, although it doesn't bring built-in async capabilities.

Another significant change is the allowance of default values for readonly properties, following the introduction of property hooks in PHP 8.4, and the addition of new functions and classes for enhanced functionality such as Duration and clamp(). Moreover, the security for session defaults is tightened with stricter ini settings, improving overall security for applications. These updates reflect an aim for better usability and performance in PHP development.