Issue #3409407 by quietone, smustgrave, xjm, longwave: Remove Book module from comments not in tests

Issue #3304256 by longwave, Spokje, dww, lauriii, catch, quietone, mherchel: Remove Bartik from Drupal core

Issue #3207567 by Spokje, quietone, guilhermevp, yogeshmpawar, daffie, alexpott: Fix Drupal.Commenting.FunctionComment.MissingParamComment

Issue #3001159 by Christian.wiedemann: getSourceStorage() should be part of ConfigInstallerInterface

Issue #3002655 by alexpott, johnpicozzi, nathandentzau, larowlan: Optional profile configuration can be unexpectedly recreated after being deleted

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

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

Issue #2460847 by alexpott: Allow optional configuration to be installed when its dependencies are met

Issue #2090115 by alexpott, xjm: Don't install a module when its default configuration has unmet dependencies

Issue #2140511 by alexpott, Gábor Hojtsy, swentel, babruix, ohthehugemanatee, jessebeach, Berdir: Configuration file name collisions silently ignored for default configuration

Issue #2233787 by alexpott, xjm | tim.plunkett: Move default configuration into extension/config/install to clarify its purpose.

Issue #1808248 by alexpott, beejeebus, tayzlor, Nitesh Sethia: Add a separate module install/uninstall step to the config import process.

Issue #2166065 by alexpott, mtift: Replace config_install_default_config with ConfigInstaller service.