activerecord 6.0.2.rc1 on Ruby Gems

Active Support

Eager load translations during initialization.
Diego Plentz
Use per-thread CPU time clock on ActiveSupport::Notifications.
George Claghorn

Share the same connection pool for primary and replica databases in the
transactional tests for the same database.
Edouard Chin
Fix the preloader when one record is fetched using after_initialize
but not the entire colection.
Bradley Price
Fix collection callbacks not terminating when :abort is thrown.
Edouard Chin, Ryuta Kamizono
Correctly deprecate where.not working as NOR for relations.
12a9664 deprecated where.not working as NOR, however
doing a relation query like where.not(relation: { ... })
wouldn't be properly deprecated and where.not would work as
NAND instead.
Edouard Chin
Fix db:migrate task with multiple databases to restore the connection
to the previous database.
The migrate task iterates and establish a connection over each db
resulting in the last one to be used by subsequent rake tasks.
We should reestablish a connection to the connection that was
established before the migrate tasks was run
Edouard Chin
Fix multi-threaded issue for AcceptanceValidator.
Ryuta Kamizono

Allow Sidekiq access to the underlying job class.
By having access to the Active Job class, Sidekiq can get access to any sidekiq_options which
have been set on that Active Job type and serialize those options into Redis.
https://github.com/mperham/sidekiq/blob/master/Changes.md#60
Mike Perham

Fix ActionMailer assertions don't work for parameterized mail with legacy delivery job.
bogdanvlviv

Fix the collision check for the scaffold generator.
Ryan Robeson
Configuration files for environments (config/environments/*.rb) are
now able to modify autoload_paths, autoload_once_paths, and
eager_load_paths.
Allen Hsu & Xavier Noria