Improvements 🔧

• Cap the detected CPU core count by the cgroup CPU quota (#6317)
• Implement worker auto-scaler (#6256), thanks @AJenbo!

Bugfixes 🐛

• Look up the stub PHPDoc of a class only when it is read (#6316), #15120
• Export PHPDoc name scopes without resolving @template bounds (#6316)
• Read property virtuality off the native reflection when exporting nodes (#6316)
• Keep the turbo code that runs before the Composer autoloader polyfill-free (#6319), #15137
• End forked workers with _exit() instead of PHP's full teardown (#6320), #15138, #15142

Performance 🏎️

• Update phpdoc-parser (#6321)
  • Lexer: extract matches with PREG_PATTERN_ORDER (~40% faster lexing) (phpstan/phpdoc-parser#313), thanks @JanTvrdik!