What are the major versions of Ruby on Rails?

What are the major versions of Ruby on Rails?

Ruby on Rails has had several major versions since its inception. The first version, Rails 1.0, was released in December 2005. Subsequent major versions include Rails 2.0 in December 2007, Rails 3.0 in March 2011, Rails 4.0 in June 2013, Rails 5.0 in June 2016, and the latest, Rails 6.0, released in August 2019.

What are the key features introduced in Rails 5?

Rails 5 introduced several key features, including Action Cable for real-time communication, API mode for building APIs, and improved performance with the introduction of the Rails/Active Record query interface.

How does Rails 6 differ from Rails 5?

Rails 6 brought features like multiple database support, parallel testing, and Action Mailbox for managing incoming emails. It also improved performance and added new Active Storage features.

Can you tell me about the deprecations in Rails 6?

In Rails 6, several features were deprecated, including the old ActiveRecord::Base.connection_pool methods and some older syntax in Action View. It's important to check the release notes for a complete list.