Issue #2986452 by alexpott, andypost, kostyashupenko, daffie, kriboogh, larowlan, kristiaanvandeneynde, chrisrockwell, bleen, nevergone: Database reserved keywords need to be quoted as per the ANSI standard. Also resolves https://www.drupal.org/project/drupal/issues/371

Issue #3103529 by mcdruid, alexpott, Chris Burge, greg.1.anderson, rfay, anavarre, Gábor Hojtsy: Drupal 8.8.1+ and 9 can fail to install in the web browser due to cache pollution

Issue #3114909 by hchonov, ravi.shankar, alexpott: Inconsistency between EntityTypeInterface ::getHandlerClass() and ::hasHandlerClass()

Revert "Issue #3113403 by Beakerboy, daffie: Make Drupal\Core\Database\Query\Condition driver overridable"

This reverts commit 7a943a3b.

Issue #3114041 by swatichouhan012, longwave, chr.fritsch, alexpott, mondrake: PhpUnit 8 tests breaking because of compatibility issue with setUp()

Issue #3113211 by bnjmnm, lauriii, xjm: Create test for theme asset decoupling from Stable and address any regressions that decoupling may cause

Issue #2746541 by quietone, alexpott, maxocub, Wim Leers, mikelutz, jofitz, masipila, firewaller, Madhura BK, Gábor Hojtsy, catch, heddn, plach, hchonov: Migrate D6 and D7 node revision translations to D8

Issue #2865416 by owenpm3, swatichouhan012, neelam_wadhwani, cilefen: Root README.txt installation profile section links to D7 docs

Issue #3119017 by Gábor Hojtsy, effulgentsia, catch, daffie: Tests fail with MariaDB 10.2.7, but not 10.3.22

Issue #3118477 by mondrake, Mile23: RegistryTest, RegistryLegacyTest both define the same class, use mock instead

Issue #3078671 by Simon Peacock, greg.1.anderson, vuil, alexpott, jungle, rodrigoaguilera, sam-elayyoub, mmjvb, karolrybak: Pin behat/mink and behat/mink-selenium2-driver to use resolvable release

Issue #3106666 by catch, jungle, xjm, alexpott, tim.plunkett, Berdir: Remove post updates added prior to 8.8.0

Issue #3043471 by longwave, catch, Wim Leers, xjm: Replace the DiactorosFactory message factory in symfony/psr-http-message-bridge with a PSR-17 compliant message factory

Issue #3118998 by katherined, neelam_wadhwani, phenaproxima, effulgentsia: Remove null default for $memory_cache in entity storage handler constructors

Issue #3118439 by kiamlaluno: PrivateKey::__construct() describes itself as "Constructs the token generator."

Issue #3010378 by benjifisher, piotrkonefal: BookManager::buildItems() is slow because it loads nodes

Issue #2821525 by bnjmnm, chrisrockwell, tedbow, alexpott, droplet, lauriii, DyanneNova, effulgentsia, xjm, joelpittet, Cottser, andrewmacpherson: Update normalize.css to the most recent version

Issue #3098475 by Berdir, catch, TravisCarden, xjm, benjifisher, alexpott, larowlan, webchick, dww: Add more strict checking of hook_update_last_removed() and better explanation

Issue #2917600 by tedbow, alexpott, catch, anthonyf, xjm, andypost, Alan D., moshe weitzman, Berdir: update_fix_compatibility() puts sites into unrecoverable state

Issue #3066801 by catch, WidgetsBurritos, pobster, jungle, tim.plunkett, xjm, dww, alexpott, webchick, benjifisher, longwave, worldlinemine, lauriii, Berdir: Add hook_removed_post_updates()

Issue #3087130 by alexpott, aleevas, rensingh99, andypost, chr.fritsch, DanielVeza: Profile configuration should be able to depend on optional configuration provided by modules

Issue #2846994 by Gábor Hojtsy, jungle, andypost, daffie, swatichouhan012, xjm, catch, effulgentsia, bzrudi71, mradcliffe, TravisCarden, Mixologic: Increase minimum version requirement for Postgres to 10 and require the pg_trgm extension

Issue #3114079 by johndevman, catch, Liam Morland, longwave, mr.baileys, alexpott, Charlie ChX Negyesi: [policy, no patch] Update minimum supported Apache version to >= 2.4.7

Issue #3118454 by catch, andypost, xjm, Gábor Hojtsy, mradcliffe, mondrake: Drupal\KernelTests\Core\Database\SelectTest fails on postgres 10

Issue #3107155 by catch, effulgentsia, andypost, xjm, daffie, Gábor Hojtsy, alexpott, mondrake: Raise SQLite version requirement to 3.26 in Drupal 9

Issue #3109534 by TravisCarden, mondrake, effulgentsia, andypost, Gábor Hojtsy, catch, daffie, xjm: Raise the minimum MySQL version to 5.7.8 and MariaDB version to 10.2.7 in Drupal 9

Revert "Issue #3107155 by effulgentsia, catch, daffie, Gábor Hojtsy, andypost, xjm: Raise SQLite version requirement to 3.26 in Drupal 9"

This reverts commit 19cf46cc.

Issue #3115624 by martijn.cuppens, jungle, JeroenT, greg.1.anderson, Mile23: Scaffolding: Only add root files to gitignore

Revert "Issue #3109534 by TravisCarden, mondrake, andypost, Gábor Hojtsy, daffie, effulgentsia, xjm: Raise the minimum MySQL version to 5.7 and MariaDB version to 10.2 in Drupal 9"

This reverts commit 39a54376.

Issue #3113556 by tedbow, DamienMcKenna, bnjmnm, lauriii: Change Views UI to use drupal.dialog instead of jquery.ui.dialog

Issue #3074585 by mikelutz, alexpott, Berdir, Mile23, heddn, effulgentsia, Wim Leers: [Symfony 5] Replace app.root and site.path string services with container parameters