SA-CORE-2021-009 by illeace, Wim Leers, xjm, effulgentsia, larowlan, pandaski, vijaycs85, phenaproxima, mcdruid

SA-CORE-2021-007 by samuel.mortenson, Wim Leers, greggles, xjm, larowlan, vijaycs85, Heine, effulgentsia, phenaproxima, mcdruid, nod_

SA-CORE-2021-006 by azinck, seanB, effulgentsia, marcoscano, larowlan, phenaproxima, xjm, mcdruid, drumm, briantschu

Issue #3228634 by Spokje, xjm, paulocs, tim.plunkett, Lendude: Move tests for integrations between QuickEdit and other modules into QuickEdit so that it can more easily be moved into contrib

(cherry picked from commit 02bf7534)

Revert "Issue #3228634 by Spokje, xjm, paulocs, tim.plunkett, Lendude: Move tests for integrations between QuickEdit and other modules into QuickEdit so that it can more easily be moved into contrib"

This reverts commit e4ce9936.

(cherry picked from commit a3f40ba1)

Issue #3228634 by Spokje, xjm, paulocs, tim.plunkett, Lendude: Move tests for integrations between QuickEdit and other modules into QuickEdit so that it can more easily be moved into contrib

(cherry picked from commit e4ce9936)

(cherry picked from commit b0f50910)

(cherry picked from commit 8fd69fcc)

(cherry picked from commit 9b0462f1)

Issue #3203416 by guilhermevp, joachim: docs for FormValidator::doValidateForm() should explain $form_id can detect recursion

(cherry picked from commit 52f5af29)

Issue #3018091 by guilhermevp, vacho, shubhangi1995, joachim, longwave, wolffereast: TaggedHandlersPass::process() doesn't document some of its features

(cherry picked from commit 1e4bd68b)

Revert "Issue #3022910 by quietone, juampynr, chandrashekhar_srijan, alisonjo315, heddn, benjifisher: Prevent migrated files from having an incorrect value at file_managed.filename"

This reverts commit 9c38b992.

(cherry picked from commit fdfc5c6e)

Issue #3221715 by nod_, brianperry: Add brianperry as coordinator for the decoupled menus initiative

(cherry picked from commit 185cded0)

Issue #3212120 by kiran.kadam911, kostyashupenko, tushar_sachdeva, chetanbharambe, ranjith_kumar_k_u, mherchel, aaron.ferris: Blockquote's content font size should be decreased when it is placed into the sidebar in the Olivero theme

(cherry picked from commit 75394d6d)

Issue #3226704 by mherchel, Abhijith S, lauriii, Gauravmahlawat, Indrajith KB: Olivero's top-level primary menu's hover states are not correct

(cherry picked from commit fa0b720e)

Issue #3221871 by mherchel, Gauravmahlawat, W01F, nod_: Olivero: Mobile menu prevents scroll & obscures page after click if menu item contains link to anchor on same page

(cherry picked from commit 4f8c468f)

Issue #3223268 by javi-er, dhirendra.mishra, mherchel: Olivero: IE11 primary menu submenus have horizontal scrollbar when submenu item has focus

(cherry picked from commit 0c9dfc7d)

Issue #3227427 by mherchel, Gauravmahlawat: Olivero: <summary> focus state is invisible in Windows high contrast

(cherry picked from commit d51a1dbb)

(cherry picked from commit 7d95d089)

Revert "Issue #3202145 by kuldeep_mehra27, phenaproxima, bkosborne, Chris Burge: oEmbed resource fetcher needs to set a reasonable connection timeout"

This reverts commit e6f76d6b.

Issue #3228145 by Gauravmahlawat, mherchel: Remove misleading "toggle" phrase from Olivero's wide search form disclosure button

(cherry picked from commit 2771c38e)

Issue #3218978 by effulgentsia, daffie, mcdruid, Wim Leers: MySQL driver allows settings.php to remove ANSI_QUOTES from sql_mode, but doesn't work when it is

(cherry picked from commit cff1307c)

(cherry picked from commit 2eebc002)

(cherry picked from commit f45d8df4)

Issue #3202145 by kuldeep_mehra27, phenaproxima, bkosborne, Chris Burge: oEmbed resource fetcher needs to set a reasonable connection timeout

(cherry picked from commit b8abdeb3)

(cherry picked from commit 150da35a)

Issue #3225188 by mherchel, dipakmdhrm, Gauravmahlawat, jwitkowski79: Olivero: Ensure proper visual hierarchy between headings

(cherry picked from commit 45d92a93)

Issue #3022910 by quietone, juampynr, chandrashekhar_srijan, alisonjo315, heddn, benjifisher: Prevent migrated files from having an incorrect value at file_managed.filename

(cherry picked from commit 286129f8)

Issue #3220255 by Spokje, mondrake, longwave: Convert assertions involving use of xpath on links to WebAssert

(cherry picked from commit df65e9fb)