Rails 5.1 doesn't load all records on calling Model.all#inspect
New Syntax for HTML Tag helpers in Rails 5.1
Rails 5.1 enhances ActiveSupport::TimeZone.country_zones
Rails 5.1 dropped jQuery dependency in default stack
Rails 5.1 adds delegate_missing_to
Rails 5.1 adds support for limit in batch processing
Rails 5.1 doesn't share thread_mattr_accessor variable
Rails 5.1 introduced assert_changes and assert_no_changes
Forward ActiveRecord::Relation#count to Enumerable#count
Rails 5.1 has introduced Date#all_day helper