Issue #2382011 by Mile23: Expand unit testing for Drupal\Component\Utility\UserAgent
Issue #2318755 by LinL, Devin Carlson, effulgentsia, catch: Block Module: Fix documentation that refers to enabling/disabling of modules
Issue #2382239 by chx: InstallerKernel is undocumented and hardwires bootstrap config storage
Issue #2354705 by yannisc: Mark a couple of asset services as non public
Revert "Issue #2382239 by chx: InstallerKernel is undocumented and hardwires bootstrap config storage"

This reverts commit 6389cda9afbafbc773d6a4e8aa8c566f79d24919.
Issue #2335673 by ashutoshsngh, oenie, rudins, er.pushpinderrana: Remove usage of drupal_process_form()