Issue #3269141 by ameymudras, longwave, ravi.shankar, sharayurajput, catch, alexpott: Remove deprecated Drupal\Core\StringTranslation\TranslationWrapper to TranslatableMarkup in Drupal 11

Issue #2863629 by sleitner, jmaties, armrus, ravi.shankar, yogeshmpawar, smustgrave, Chris64, quietone, alexpott: Only fallback to an existing singular or nth plural form of a translation

Issue #2157945 by mondrake, andypost, kim.pepper, Bhanu951, alexpott, martin107, plach, ankithashetty, dawehner, karishmaamin, voleger, jhedstrom, jofitz, kostyashupenko, shashikant_chauhan, longwave, zeeshan_khan, claudiu.cristea, mstrelan, Berdir: Deprecate format_size() and use Drupal\Core\StringTranslation\ByteSizeMarkup instead

Issue #3266568 by mxr576, sourabhjain, quietone: Refactor array_merge() usage in loops as possible for performance

Issue #3295421 by Gábor Hojtsy, catch, atuliet05: Update TranslationWrapper deprecation to removal in 11.0.0

Revert "Issue #3269141 by longwave, sharayurajput, andypost: Alias deprecated Drupal\Core\StringTranslation\TranslationWrapper to TranslatableMarkup"

This reverts commit c728e353.

Issue #3269141 by longwave, sharayurajput, andypost: Alias deprecated Drupal\Core\StringTranslation\TranslationWrapper to TranslatableMarkup

Issue #3164210 by jungle, sylus, Akhildev.cs, dww: Refactor array_merge() usage in loops as possible for performance

Issue #3222251 by bbrala, longwave: [November 8, 2021] Replace all isset constructs with the null coalescing operator

Issue #3181644 by alexpott, andypost, longwave, chr.fritsch: PCRE library version 10.35 with pcre.jit=1 makes \Drupal\Core\StringTranslation\Translator\FileTranslation::getTranslationFilesPattern() regex misbehave

Issue #3183673 by jonathan1055, longwave: Fix 'Drupal.Commenting.DocComment.ShortFullStop' coding standard - part 1 auto-fixes

Issue #3114239 by andypost, Hardik_Patel_12, alexpott, Berdir: Properly deprecate \Drupal\Core\StringTranslation\TranslationWrapper

Issue #3104307 by Berdir, longwave, Gábor Hojtsy, Wim Leers, alexpott, andypost: Remove  BC layers in various Drupal\Core components

Issue #3048498 by jonathan1055, Lendude, naveenvalecha, klausi, alexpott, Gábor Hojtsy: [≈Nov. 11] Fix Drupal.Commenting.Deprecated coding standard

Issue #2940038 by Sweetchuck, drunken monkey, rajeshwari10, borisson_: Use $this in @return PhpDoc comments instead of the name of the current class or interface

Issue #3035312 by kim.pepper, andypost, martin107, yogeshmpawar, naveenvalecha, pguillard, Berdir, dww, claudiu.cristea, jibran, Mile23: Move file_scan_directory() to file_system service

Issue #2911606 by andypost, jludwig, msankhala, brathbone, imalabya, RajeevChoudhary, benjifisher: Replace usage of the deprecated LOCALE_PLURAL_DELIMITER constant

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

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 #2502195 by vijaycs85, larowlan: \Drupal\Core\StringTranslation\Translator\CustomStrings should be serializable, but contain \Drupal\Core\Site\Settings which is not

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

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

Issue #2573975 by alexpott, juampynr, Berdir, edurenye: function_exists check in PluralTranslatableString is wrong

Issue #2676472 by micaelamenara, jhodgdon: docs for t() and related functions don't explain how context works

Issue #2600118 by aerozeppelin, anil280988, stefan.r, dawehner, andypost, sdstyles, ramirez.gerardo: Return TranslationWrapper in t() and $this->t() directly

Issue #2606246 by rang501, heykarthikwithu: StaticTranslation::getLanguage, add @return values in the comment docblocks

Issue #2600078 by YesCT, koppie, kgoel: Correct syntax for data type documentation in TranslationManager.php

Issue #2613976 by Oleksiy: Remove redundant "See..." that duplicates "@see..." in protected method documentation

Issue #2600396 by mpdonadio, justAChris, tstoeckler, skyredwang, jhodgdon, Gábor Hojtsy, Matze202: DateFormatter::formatDiff passes an invalid language code TranslationInterface::formatPlural() leading to duplicated translations and untranslatable strings

Issue #2600672 by alexpott, dawehner: Core MarkupInterface implementations used in Twig templates should implement \Countable

Issue #2578377 by YesCT, jhodgdon, Gábor Hojtsy, alexpott, herom, xjm: Make translatable docs consolidated and better for developers