Issue #3088403 by Mile23, Mixologic: Defensive coding: Vendor hardening plugin sometimes receives AliasPackage

Issue #3053656 by Sam152, JeroenT, Lendude, mglaman: Rename action.post_udate.php to action.post_update.php

Issue #3004929 by mikelutz, heddn: Fix 'The Drupal\migrate\Plugin\migrate\process\Migration is deprecated in Drupal 8.4.0 and will be removed before Drupal 9.0.0. Instead, use Drupal\migrate\Plugin\migrate\process\MigrationLookup'

Issue #3047709 by J.Gayathri, jhodgdon, spitzialist, anmolgoyal74, Madhura BK, petedussin, alonaoneill: Convert block and block_content module hook_help() to topic(s)

Issue #3005352 by hchonov, oknate: Passing a Session object to the ExpectationException constructor is deprecated as of Mink 1.7. Pass the driver instead

Issue #3064049 by zrpnr, lauriii, bnjmnm, finnsky, alexpott, tedbow, phenaproxima, Wim Leers, xjm, Berdir, sasanikolic, justafish, larowlan: Replace jQuery UI sortable with Sortable js

Revert "Revert "Issue #3087482 by Mile23, greg.1.anderson, AaronMcHale, johndevman, mbaynton, alexpott: Add 'next steps' info to Composer installation output""

This reverts commit 32b0bacf.

Revert "Issue #3087482 by Mile23, greg.1.anderson, AaronMcHale, johndevman, mbaynton, alexpott: Add 'next steps' info to Composer installation output"

This reverts commit b547ffe6.

Issue #3087482 by Mile23, greg.1.anderson, AaronMcHale, johndevman, mbaynton, alexpott: Add 'next steps' info to Composer installation output

Issue #3041076 by alexpott, shaal, Gábor Hojtsy, lauriii, Wim Leers, catch, Cottser, jibran, andypost, znerol, xim, joelpittet, effulgentsia: Update Drupal 9 to Twig 2

Issue #3072906 by bnjmnm, zrpnr, Wim Leers, lauriii, catch, mpdonadio, xjm, rainbreaw, andrewmacpherson, mgifford, anevins, jhedstrom: Deprecate and remove jQuery UI datepicker

Issue #3090684 by Mixologic, greg.1.anderson, opdavies, alexpott: Rename drupal/dev-dependencies and drupal/pinned-dev-dependencies

Issue #2915036 by ndf, Dane Powell, tim.plunkett, Lendude, jofitz, koppie, larowlan, fubarhouse, sime, alex.skrypnyk, Joseph Zhao: Display mode configurations don't get updated with new fields

Revert "Issue #3072312 by jhodgdon, Amber Himes Matz, andypost, webchick: Review/fix/delete existing help topics"

This reverts commit 24a6e3d3.

Issue #3072312 by jhodgdon, Amber Himes Matz, andypost, webchick: Review/fix/delete existing help topics

Issue #3016471 by Gábor Hojtsy, drumm, tedbow: Make localization file download major version agnostic

Issue #3086408 by Krzysztof Domański, mglaman, el7cosmos: Error code should be string in HttpExceptionNormalizer

Issue #2930050 by quietone: Remove destination property content_translation_update_definitions from migrations

Issue #3066954 by andrewmacpherson, Wim Leers, bnjmnm, OBKev: Admin toolbar not usable with latest versions of JAWS due to mis-use of aria-owns

Issue #3087626 by greg.1.anderson, Mixologic, jibran, Mile23, alexpott, xjm: Convert drupal/core-recommended & c. into a subtree split

Issue #3087531 by alexpott, jibran, gnikolovski, xjm, Mixologic: Use Diactoros LTS version 1.7, not 1.8 which is out of security coverage

This reverts commit a0539080.

Issue #3087518 by kim.pepper: Remove references to queryAddPage() in comments and deprecation notices