Rails 6.1 Adds Enumerable#pick
Adding pick to enumerable will enable us to call pick on loaded relations, unloaded relations, and plain enumerables interchangeably.Rails Adds :from/:to to previously_changed?
Rails Active Model Dirty method [attribute_name]_previously_changed? now accepts :from and :to arguments just like [attribute_name]_changed?Rails adds config rake_eager_load
Rails has added the option to eager load all the registered name spaces in rake tasks.