Mar 6, 2020
Eager loading Active Storage models to avoid N+1 issues
Removing N+1 queries when we access the Active Storage attachments associated with an ActiveRecord model.
Mar 4, 2020
Rails adds jitter to ActiveJob::Exceptions.retry_on
Rails adds jitter to ActiveJob::Exceptions.retry_on to cater to thundering herd effect
Feb 26, 2020
Ruby Hash#transform_keys now accepts a hash that maps existing keys to new keys
Ruby Hash#transform_keys now also accepts a hash that maps the existing hash keys to new keys
Feb 25, 2020
Rails has added strict loading mode to prevent lazy loading
Rails has added strict loading mode to prevent lazy loading of associations and help avoid N + 1 queries
Feb 24, 2020
Rails adds config rake_eager_load
Rails has added the option to eager load all the registered name spaces in rake tasks.
Feb 19, 2020
Rails has added support for automatic database connection switching from primary to the replica
Rails has added support for automatic database connection switching from primary to the replica
Feb 18, 2020
Ruby 2.7 removes taint checking mechanism
Ruby 2.7 access and setting of $SAFE is now always warned. $SAFE will become a normal global variable in Ruby 3.0
Feb 17, 2020
Rails 6.1 adds at option to perform_enqueued_jobs test helper
Rails 6.1 has added at option to perform_enqueued_jobs test helper to run only jobs which are scheduled at or before the passed in time
Feb 14, 2020
Rails adds ActiveRecord API for switching multiple database connections
Rails adds ActiveRecord API connects_to and connected_to for switching connections to support multiple databases.
Feb 12, 2020
Rails introduces disallowed deprecations in ActiveSupport
Rails has added support to configure disallowed deprecations.
