Issue #3111409 by mherchel, proeung, larowlan, alexpott, lauriii, Gábor Hojtsy, andrewmacpherson, catch, xjm, andypost, rahulrasgon, rabbitlair, mrconnerton, poojakural, boulaffasae, jerseycheese, shimpy, Indrajith KB, DuneBL, kiran.kadam911, komalkolekar, keboca, hawkeye.twolf, andrewozone, Maithri Shetty, alexdmccabe, sd9121, Sreenivas Bttv, katannshaw, mgifford, nod_, webchick, mtift, rainbreaw, Berdir, brianperry, thejimbirch, Dom., q0rban, nitesh624, hansa11, himanshu_sindhwani, kostyashupenko, shaktik, bnjmnm, sharma.amitt16, sonam.chaturvedi, steinmb, shaal, ressa, Ramya Balasubramanian, Sebacic, pradeepjha, tanmaykadam, thedrupalkid, vinitk, volkswagenchick, viappidu, vebrovski, Ujval Shah, Webbeh, Yuri, trebormc, msuthars, mrinalini9, bash247, chetanbharambe, ellenoise, anevins, andriyun, CocoM, JayKandari, ambuj_gupta, hussainweb, jhodgdon, Pooja Ganjage, ju.vanderw, jwitkowski79, MaxPah, Lokender Singh2, jponch, KarenS, KarinG, Lal_: Add new Olivero frontend theme to Drupal 9.1 core as beta; later make it stable and the default

Issue #2902412 by Jo Fitzgerald, andypost, mfernea, andriyun: Fix 'Drupal.Strings.UnnecessaryStringConcat' coding standard

Issue #2572787 by alexpott, mfernea, attiks, andriyun, andypost, RoSk0, hussainweb, klausi, martin107: Fix 'Drupal.WhiteSpace.CloseBracketSpacing' coding standard

Issue #2901789 by mfernea, andriyun, borisson_: Fix 'PEAR.Functions.FunctionCallSignature' coding standard

Issue #2572699 by rajeshwari10, andriyun, mfernea, pashupathi nath gajawada, marvin_B8, attiks, andypost, alexpott: Fix 'Drupal.ControlStructures.InlineControlStructure' coding standard

Issue #2572791 by Mile23, andriyun, attiks, RoSk0: Fix 'Drupal.WhiteSpace.OpenBracketSpacing' coding standard

Issue #2759789 by mfernea, Mile23, andriyun, dawehner, klausi: Fix 'Drupal.Semantics.FunctionAlias' coding standard

Issue #2901739 by andriyun, Jo Fitzgerald, mfernea, xjm: Fix 'Squiz.Arrays.ArrayDeclaration' coding standard

Issue #2572801 by alexpott, vprocessor, andriyun, andypost, chishah92, Mile23, attiks, hussainweb, klausi, dawehner, pfrenssen: Fix 'Drupal.WhiteSpace.ScopeIndent' coding standard

Issue #2329453 by alexpott, joelpittet, hussainweb, kaidjohnson, andriyun, JohnAlbin, mirie, steveoliver, quicksketch, geerlingguy, RobLoach, jenlampton, SebCorbin, pablo.guerino, afoster, markcarver, danbohea, andypost, catch, donquixote, marcvangend, David_Rothstein, LewisNyman, neclimdul: Ignore front end vendor folders to improve directory search performance

Issue #2572619 by attiks, andypost, pfrenssen, vprocessor, tatarbj, andriyun, alexpott: Fix 'Drupal.Classes.ClassDeclaration' coding standard

Issue #2572633 by vprocessor, andypost, attiks, andriyun: Fix 'Drupal.Commenting.ClassComment' coding standard

Issue #2572777 by andypost, alexpott, attiks, andriyun: Fix 'Squiz.Strings.ConcatenationSpacing' coding standard

Issue #2572693 by Mile23, andriyun, andypost, attiks: Fix 'Drupal.ControlStructures.ControlSignature' coding standard

Issue #2572307 by vprocessor, attiks, andriyun, alexpott, pfrenssen: Fix 'Generic.PHP.UpperCaseConstant' coding standard

Issue #2610344 by mikeker, dimaro, mohit_aghera, andriyun, anil280988, Cottser, joelpittet: Re-add some documentation about what you can get from the node object in node.html.twig

Issue #2546196 by andriyun, neclimdul, hussainweb, mgifford, Wim Leers, TR, andypost: Toolbar's orientation-toggling arrows broken by #2173527

Issue #2563805 by andriyun, subhojit777, joshi.rohit100, naxolozano: Remove usage and function of test_page_test_page()