Ruby 2.7 adds Enumerable#filter_mapRuby 2.7 has added Enumerable#filter_map as a shorthand for filter + map in a single call
Rails 6 deprecates update_attributes and update_attributes!Rails 6 has deprecated update_attributes and update_attributes! in favor of update and update!
Rails 6 adds db:prepare rake taskRails 6 adds db:prepare rake task which creates the database, loads the schema, runs the migrations and initializes with the seed data
Rails 6 adds Array#including, Array#excluding, Enumerable#including, Enumerable#excludingRails 6 adds Array#including, Array#excluding, Enumerable#including, Enumerable#excluding
Rails 6 adds Relation#reselectRails 6 add a reselect method to Relation. This is a short-hand for "unscope(:select).select(fields)".
Ruby 2.7 adds Enumerable#tallyRuby 2.7 has added Enumerable#tally. It helps to tally occurrences of elements in an Enumerable.
Rails 6 adds support for timezones to Active JobRails 6 now supports preserving timezones to Active Job. It record what was the current timezone in effect when the job was enqueued and then restore when the job is executed in same way that the current locale is recorded and restored.
Rails 6 adds before? and after? methods to Date, DateTime, Time, and TimeWithZone.Rails 6 adds before? and after? methods to Date, DateTime, Time, and TimeWithZone. This allows to check if a date/time value is before or after another date/time in a more readable way.
Ruby 2.7 adds shorthand operator for Object#methodRuby 2.7 adds experimental shorthand operator for Object#method. Allows method object access using :, example File.:basename
Rails 6 adds negative scopes for all enum valuesRails 6 adds negative scopes for all enum values