Issue #2949457 by idebr, jibran, Wim Leers, dungahk, fago, kim.pepper, neclimdul, ravi.shankar, Suresh Prabhu Parkala, Sam152, joshua1234511, Kristen Pol, kualee, MiroslavBanov, acbramley, alexpott, Fabianx: Enhance Toolbar's subtree caching so that menu links with CSRF token do not need one subtree cache item per session

Issue #3216489 by mherchel, dungahk, andy-blum, Indrajith KB, larowlan: Olivero font preload does not work when the site has a base path

Issue #3143604 by chr.fritsch, Taran2L, longwave, alexpott, dungahk: PhpUnitCompatibility\PhpUnit8\ClassWriter cannot detect PHPUnit source directory  when running PHPStan check