The development of PHP 8.2 started after PHP 8.1 reached its feature-freeze. It is scheduled to be released towards the end of year 2022.
PHP 8.1 is the latest major PHP version. It brings major new features such as Enums, Fibers, never return type, Intersection Types, readonly properties, and more, while ironing out some of its undesired legacy features by deprecating them.
PHP 8.0, on the 25th year of PHP history, brings several important features such as Union Types, JIT, Constructor Property Promotion, Match Syntax, Named Parameters, and several more performance, syntax, and quality-of-life improvements.
PHP 7.4, the final release in the PHP 7.x series. PHP 7.4 brings typed properties, underscore numeric separator, and other minor improvements to PHP.
Heredoc/nowdoc syntax improvements and a bunch of legacy code deprecations.