Issue #2347799 by andypost, almaudoh, znerol: Remove bugged session-related methods from AccountInterface

Issue #70722 by David Lesieur, bircher, rocket_nova, paranojik, Pasqualle, jhodgdon, robertDouglass, douggreen, petar.gnjidic, pfournier: Search results should respect the content type's "Display author and date information." option

Issue #2475397 by Wim Leers: Tiny follow-up for #2474121 + unit test coverage for (Bubbleable|Cacheable)Metadata::merge()

Issue #2473301 by stefan.r, jcnventura, David_Rothstein, yannickoo: Raise MySQL requirement to 5.5.3

Issue #2473759 by tim.plunkett, Berdir, effulgentsia: Form caches should be deleted after submission

Revert "Issue #2395143 by amateescu, Fabianx, Berdir, beejeebus, dashaforbes, larowlan, dawehner, catch, alexpott, neclimdul, yched, znerol, fgm, effulgentsia: YAML parsing is very slow, cache it with FileCache"

This reverts commit 4192117d.

This reverts commit bfcb41bf.

This reverts commit a16cbda0.

Issue #2472669 by keopx, rpayanm, rteijeiro, jhodgdon: Complete documentation for every implementation of hook_ENTITY_TYPE_*

Issue #2462459 by Cinnead, Bojan Živkov, haasontwerp, emma.maria: Active trail menu items should be distinct from other items

Issue #2398445 by jp.stacey, LewisNyman, Manjit.Singh, pjbaert, emma.maria, ti2m: Clean up the "elements" component in Bartik

Issue #2346209 by keopx, Zekvyrin, subhojit777, cburschka, pguillard, dimaro, realityloop, m4olivei, joelpittet, rteijeiro, idebr: /filter/tips improperly escaped

Issue #2369675 by FMB, pstewart: Document that SearchQuery does not support orderBy in queries outside of addScore

Issue #2362637 by yched, slashrsm, rpayanm: Editor.js attach/detach doesn't pass context all the way down

Issue #1882788 by jabberwooki, keopx, joshi.rohit100, jhodgdon: assertText/assertNoText doesn't really show what you could see in the browser (bad docs)

Issue #2474121 by Wim Leers: CacheableMetadata should get BubbleableMetadata's merge/applyTo/createFromRenderArray/createFromObject methods

Issue #2349461 by Jelle_S, mdrummond, attiks, Wim Leers: Move fallback image style into the responsive image style entity

Issue #2474817 by znerol: DrupalKernel::classLoader not updated when switching to apcu either through settings.php or automatically

Issue #2409885 by nlisgo, tstoeckler, crasx, dmsmidt: Switch shortcut set form has accessibility issues

Issue #2389735 by lauriii, iMiksu, davidhernandez, larowlan, loopduplicate, LewisNyman, Wim Leers, dawehner, Cottser: Core and base theme CSS files in libraries override theme CSS files with the same name