Rails allows a module with extend ActiveSupport::Concern to be prepended

This blog post discusses the concept of prepending in Ruby and prepending concerns with the help of Active Support in Rails.

Rails adds support for adding a default value to the rich text area

Rails has added support for adding a default value to the form field of type rich text area.

Changes to behavior in rails db:migrate:name command

Rails has made changes to dump the schema(or structure) of the database when executing the command rails db:migrate:name. The command will also reset the `ActiveRecord::Base` connection after its execution.

Rails adds a minimal flag to generate a new application

Rails used to come with a lot of frameworks by default, when we generate a new application. Now Rails introduced minimal flag to generate an application with only bare minimum frameworks

Rails 6.1.0.alpha allows relations with different SQL comments and Optimizer hints in "or"

ArgumentError used to be thrown when relations with SQL comments and Optimizer hints were combined using or. Rails edge(6.1.0.alpha) fixes that issue.

Rails makes ActiveStorage `web_image_content_types` configurable

Rails added web_image_content_types config option to ActiveStorage, which allows an application to add content types instead of letting the images be transformed into the fallback PNG format.

ACID transactions in every day applications

Breaking down the use of ACID transactions using real-life examples of systems that we employ every day.

Encapsulate each validation error as an Error object

ActiveModel::Error class has changed from Hash based interface to an array of Error objects.

Rails support bulk insert/upsert on relation

Rails 6.1 has added support for bulk insert/upsert on relation to preserve scope values.

Rails ActionController::Parameters each_pair and each_value returns an enumerator.

Rails ActionController::Parameters each_pair and each_value now returns an enumerator when provided without a block.