Issue #3224420 by andypost, longwave, daffie: [PHP 8.1] Exception codes should be numeric and not NULL

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

Issue #3021434 by voleger, Peter Majmesku, andypost, Berdir, kim.pepper: Properly deprecate drupal_unlink()

Issue #3021450 by kim.pepper, jibran, voleger, alexpott, Berdir: Add @trigger_error to deprecated functions in file.inc and replace their usages

Issue #2854529 by alexpott, xjm, klausi, Chi, Mixologic: Fix Drupal.Scope.MethodScope - all methods should have scopes

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 #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 #2502621 by Pravin Ajaaz, hussainweb, Peacog, jhodgdon, ivanjaros: Replace implement notes with inheritdoc tag

Issue #1392754 by tss, justAChris, jhodgdon: Comply with new documentation standards for @file for namespaced class files

Issue #2463817 by alexpott: Drupal\Core\FileTransfer\Local should use a leading \ when using PHP built-in classes

Issue #2242405 by mikebarkas, jlbellido | alexpott: Fixed FileTransfer::connect is protected yet the implementations are public and this is relied upon.

Issue #1614186 by RobLoach, tim.plunkett, msonnabaum, Crell, jhodgdon, Niklas Fiekas: Update coding standards for using 'native' PHP classes like stdClass in namespaced code.

Issue #1323124 by amateescu, aspilicious, Berdir: Convert file transfer system to PSR-0. Commit ALL THE files.

This reverts commit 5abec889.

Nate Lampton authored Oct 30, 2011 and catch committed Nov 01, 2011

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

#935036 by bfroehle, dww, int: Exclude '.' and '..' when recursing through directories in update module.

- Patch #443286 by c960657, Damien Tournoud, drifter, webkenny, scor: international characters break file handling.

#609728 by dww and JacobSingh: Skip authorize.php step in update manager if webroot files are owned by the httpd user.