Ways for reducing Heroku slug sizeTechniques for reducing Heroku slug size for Rails applications
Rails adds support for descending order in find_each, find_in_batches and in_batchesRails 6.1 has added support for providing order(ASC/DESC) to batch processing methods like find_each, find_in_batches and in_batches instead of processing records in ascending order always.
Rails - Added sub seconds to Time inspectRails has added sub seconds to ActiveSupport::TimeWithZone#inspect method.
Rails adds support for db:rollback:name for multiple database applicationsRails has added support for name option while rollbacking migration for multiple database application
Rails 6.1 add Enumerable#pick to complement Relation#pickAdding pick to enumerable will enable us to call pick on loaded relations, unloaded relations, and plain enumerables interchangeably.
Using Optimizer Hints in RailsOptimizer Hints allows us to control the query optimizer of a database system. Rails 6 has added support to provide Optimizer Hints.
Rails 6.1 adds ActionCable::Channel#stream_or_reject_forRails 6.1 adds `ActionCable::Channel#stream_or_reject_for` to stream or reject connection based on presence of record
Heredocs and how to use them in Ruby and RailsWhat are heredoc and different ways to use them in Ruby and Rails.
Rails has deprecated using return, break and throw to exit a transactionRails has disallowed using return, break and throw for exiting early from a transaction and having it committed.
Rails ActiveRecord::Relation#pick now uses already loaded resultsRails ActiveRecord::Relation#pick now uses already loaded results instead of making a new query everytime.