Issue #3365497 by finnsky, Gauravvvv, sarahjean, smustgrave, snig, e0ipso, pdureau: Create new SDC component for Umami Banner

Issue #3368102 by finnsky, Gauravvvv, smustgrave, lauriii, e0ipso, andypost, mrinalini9: Create new SDC component for Umami (umami common footer block)

Issue #2157945 by mondrake, andypost, kim.pepper, Bhanu951, alexpott, martin107, plach, ankithashetty, dawehner, karishmaamin, voleger, jhedstrom, jofitz, kostyashupenko, shashikant_chauhan, longwave, zeeshan_khan, claudiu.cristea, mstrelan, Berdir: Deprecate format_size() and use Drupal\Core\StringTranslation\ByteSizeMarkup instead

Issue #3318549 by smustgrave, mstrelan, larowlan, rkoller, AaronMcHale, acbramley: Rename Custom Block terminology in the admin UI

Issue #2936875 by hiway, markconroy, lauriii, Gauravvvv, smustgrave, thamas: Umami Theme - follow-up - remove elements, use classes in CSS

Issue #3328443 by xjm, rpayanm, alexpott, catch, longwave: Replace most strpos() === 0 or !== 0 with str_starts_with()

Issue #3115223 by bnjmnm, lauriii, tedbow, xjm, alexpott: Remove Stable as a base theme of core themes

Issue #3109287 by bnjmnm, lauriii, dww: Decouple Classy-inheriting themes from Classy's preprocess functions

Issue #3081080 by stefan.korn: Fix small issue in DocBlock comment for umami_theme_suggestions_block_alter

Issue #2937898 by navneet0693, bserem, larowlan, tim.plunkett: Use route match in umami_preprocess_breadcrumb instead of accessing raw request parameters

Issue #2938900 by David_Rothstein, navneet0693, JayKandari: Replace profile-defined blocks with custom blocks to fix a variety of problems

Issue #2937636 by piyuesh23, markconroy: Umami Theme - follow-up - Use hook_form_alter() for search block placeholder

Issue #2809635 by markconroy, navneet0693, alexpott, smaz, larowlan, Eli-T, webchick, yoroy, ikit-claw, budda, kjay, timmillwood, tkoleary, Gábor Hojtsy, andrewmacpherson, lauriii, JayKandari, jibran, ok_lyndsey, big_man, ckrina, nathancz, Paul_Gregory, vijaycs85, SharJay, tomphippen, tim.plunkett, Tarun Lewis, cehfisher, kreynen, Petr Illek, mariohernandez, thamas, thatdamnqa, John Cook, philipnorton42, h2cm, kattekrab, martin_q, waako: Create experimental installation profile