SA-CORE-2019-002 by greggles, cashwilliams, EclipseGc, larowlan, samuel.mortenson, alexpott, tedbow, effulgentsia, Fabianx, xjm, mlhess

Issue #2829185 by vaplas, Jo Fitzgerald, anmolgoyal74, chipway, gaurav.kapoor, mark_fullmer, amit.drupal, cilefen, longwave, xjm, wturrell, anavarre: Fix spelling errors in Drupal core comments

(cherry picked from commit 2dabd1de)

Issue #2905109 by iainp999, gawaksh, msankhala, joachim, borisson_, alexpott: DrupalKernel::guessApplicationRoot() should document what the assumptions are and what it's doing

(cherry picked from commit 03a3058d)

Issue #2975328 by alexpott, Gábor Hojtsy, borisson_: Install profile in settings.php and mismatch check makes re-installs of Drupal hard

Issue #2849669 by alexpott, pwolanin, Munavijayalakshmi, dawehner: Fix \Drupal\Component\Utility\Unicode() because of the Symfony mbstring polyfill

SA-CORE-2018-002 by Jasu_M, samuel.mortenson, David_Rothstein, xjm, mlhess, larowlan, pwolanin, alexpott, dsnopek, Pere Orga, cashwilliams, dawehner, tim.plunkett, drumm

Issue #2526150 by catch, Wim Leers, Denchev, hussainweb, dawehner, mpdonadio, borisson_, fgm, olli, alexpott, vaplas, flocondetoile, Berdir, Fabianx, cilefen: Database cache bins allow unlimited growth: cache DB tables of gigabytes!

Revert "Issue #2526150 by catch, Wim Leers, Denchev, hussainweb, dawehner, mpdonadio, borisson_, fgm, olli, alexpott, flocondetoile, Berdir, Fabianx: Database cache bins allow unlimited growth: cache DB tables of gigabytes!"

This reverts commit 1a71b1a9.

Issue #2526150 by catch, Wim Leers, Denchev, hussainweb, dawehner, mpdonadio, borisson_, fgm, olli, alexpott, flocondetoile, Berdir, Fabianx: Database cache bins allow unlimited growth: cache DB tables of gigabytes!

Issue #2650434 by vijaycs85, anemes, duozersk, andypost, eiriksm, TwoD, chipway, pguillard, dawehner, tstoeckler, vaplas, robert-os, Yogesh Pawar, davidraijmakers: Clearing cache via UI in translated language resets config translation of field labels to default language

Issue #2859704 by alexpott, tacituseu, xjm, vaplas, mpdonadio, catch, Mixologic: Intermittent segfaults on DrupalCI (some did

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable

Issue #2843828 by alexpott, timmillwood: \Drupal\Core\DrupalKernel::initializeSettings() can result in moving the autoloader position

Revert "Issue #2712647 by klausi, catch, slasher13, jibran, Manuel Garcia, alexpott, naveenvalecha, neclimdul, dawehner, Wim Leers, pounard: Update Symfony components to ~3.1"

This reverts commit a55b8ef1.

Issue #2712647 by klausi, catch, slasher13, jibran, Manuel Garcia, alexpott, naveenvalecha, neclimdul, dawehner, Wim Leers, pounard: Update Symfony components to ~3.1

Revert "Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable"

This reverts commit 480eb82c.

Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable

Issue #2556025 by david_garcia, dawehner, -enzo-, Fabianx, catch: Make optimized class loader detection more generic to support class loaders other than ApcClassLoader

Issue #2776235 by mikeryan, alexpott: Cached autoloader misses cause failures when missed class becomes available

Issue #728702 by Crell, daffie, pillarsdotnet, pjcdawkins, Damien Tournoud, David_Rothstein, reglogge, amateescu, tim.plunkett, tstoeckler, xjm, hussainweb, alexpott, cweagans, Tor Arne Thune, catch: Visiting index.php should redirect to install.php if settings.php already has database credentials but database is empty

Issue #2756175 by Fabianx: FileCacheFactory::get() should not use 'default' configuration key before passed in configuration

Issue #2730129 by klausi, jibran, dawehner: DrupalKernel must never persist service_container for Symfony 3 update

Revert "Issue #2730129 by klausi, jibran, dawehner: DrupalKernel must never persist service_container for Symfony 3 update"

This reverts commit bfdc7b52.

Issue #2730129 by klausi, jibran, dawehner: DrupalKernel must never persist service_container for Symfony 3 update

Issue #2719695 by alexpott, Mile23: Fix 'Drupal.Classes.ClassDeclaration.CloseBraceAfterBody' coding standard

Issue #2648562 by gapple, neclimdul: Symfony's ApcClassLoader requires APC backwards compatibility layer

Issue #2614202 by alexpott, felribeiro, dawehner, catch: CoreServiceProvider::registerUuid() assumes all environments have the same functions available

Issue #2572601 by attiks, alexpott, tatarbj: Fix 'Drupal.Classes.ClassCreateInstance' coding standard

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits