Issue #3335768 by Berdir, andypost, smustgrave, catch: Manually clear cache keys from plugin managers with finite variations instead of using cache tags

Issue #3326239 by mondrake, Spokje, andypost, longwave, xjm, quietone: Add phpstan/phpstan-phpunit as a dev dependency

Issue #3330305 by Spokje, mondrake: Fix failing "updated deps" test-runs by upping mglaman/phpstan-drupal to latest

Issue #3330673 by mondrake, Spokje, catch: Reduce significantly PHPStan running time by enabling bleeding edge features

Issue #3112283 by ravi.shankar, mpdonadio, andregp, daffie, jhedstrom, alexpott, andypost, pifagor, vladbo, JeroenT, voleger, cliddell: Replace REQUEST_TIME in non-OO and non-module code

Issue #3260928 by mondrake, mallezie, neclimdul, mglaman: Move more PHPStan global ignore patterns to baseline

Issue #3178534 by mondrake, klausi, alexpott, longwave, mallezie, Taran2L, mglaman, Spokje, kim.pepper, daffie, andypost, neclimdul, xjm, Gábor Hojtsy, cmlara: Start running PHPStan on Drupal core (level 0)