Upcoming features include ActiveStorage, built-in Redis Cache Store, updated Rails Credentials and a bunch of other cool things! Honorable mentions also to the new Stimulus Javascript Framework.

Save expensive calculation time using Rack::Attack, we will learn how to limit requests coming into our application. This gem not only limits requests, but can be used to blacklist or whitelist users as well.

Analytics can provide great information about your users and the content that you're producing. With using the Ahoy gem, we can gather powerful analytics without handing them over to third parties.

Learn to use single table inheritance to allow multiple classes to be stored in the same database table.

ActionCable can handle quite a bit of traffic, but it gets to a point where it can become a burden on the server. With AnyCable, we can not only handle more traffic, but it is also lighter on the resources.