Issue 497 - It's time to upgrade those Ruby 2.4 apps (24)

Bye Bye Ruby 2.4, Support Has Ended — From the end of April 2019 till now, Ruby 2.4 has been in its ‘security maintenance’ phase but now you won’t even get that, Ruby 2.4.10 should be the final 2.4 release. 2.5 will follow in 2.4’s footsteps next year, so upgrading to 2.6 or 2.7 should now be a priority for those older apps.

Testing Ruby Decorators with super_method — Have you ever wondered how you can properly test the behavior of a method overridden by Module#prepend? Enter super_method which returns a Method object of which superclass method would be called when super is used or nil if none exists.

You Hacked the Gibson? Yeah, They Built Their Own Login — Don't let Crash Override pwn your app. FusionAuth adds secure login, registration and user management to your app in minutes not months. Download our community edition for free.

Heya: A Sequence Mailer for Rails — “Think of it like ActionMailer, but for timed email sequences.” Note: It’s open source but not free for commercial use beyond a certain point.

A Final Report on Ruby Concurrency Developments — A report on work funded by a 2019 Ruby Association Grant that puts forth a proposal of using non-blocking fibers to improve Ruby’s concurrency story.

Mocking in Ruby with Minitest — Minitest has basic mocking functionality baked in, but be judicious in your use of it.

Ruby Backend Developer (Austria) — We’re seeking mid-level and senior devs to join us and build top-class backend infrastructure for our adidas apps, used by millions. Our stack includes: jRuby, Sinatra, Sidekiq, MySQL, & MongoDB.

Predicting the Future With Linear Regression in Ruby — Linear regression is a mathematical approach to modelling a relationship between multiple variables and is demonstrated here by exploring whether the tempo of a song predicts its popularity on Spotify.

Feature Flags: A Simple Way to 'De-Stress' Production Releases — Feature flags bridge a gap between the abstract concept of continuous delivery and tactical release of features.

A Guide to Deprecation Warnings in Rails — If you’ve upgraded Rails and you start seeing warnings screaming at you, you can either get Googling or.. read this 😄

Using Optimizer Hints in Rails — Rails 6 removes the need to write raw SQL to use optimizer hints, so that’s cool.

Dissecting Rails Migrations — You should pick up something new about migrations by reading this article as it covers all of the essentials and a little more.

ruby-prolog: A Pure Ruby Prolog-like DSL for Logical Programming — Solve complex logic problems on the fly using a dynamic, Prolog-like DSL inline with your normal code.

Anyway Config: Keep Your Ruby Configuration Sensible — Get your Ruby project out of ‘ENV Hell’ with anyway_config, a framework for managing configuration.

The End of Heroku Alerts — Rails Autoscale keeps your app healthy. Simple and effective autoscaling for Web, Sidekiq, Delayed Job, and Que.

Tomo 1.0: A Friendly CLI for Deploying Rails Apps — There’s a short tutorial for deploying Rails, and the documentation is thorough.

ActiveLdap 6.0: An Object Oriented Interface to LDAP — A very long standing project (16 years!) that has just had an update. LDAP stands for Lightweight Directory Access Protocol and while I don’t hear about it much anymore, it has plenty of established use cases.

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