New features in Rails 4.2.9

Rails 4.2.9 released at last
14 June 2017   3437

Finally, RoR 4.2.9 has been released. This is going to be last update release of 4.2 series, so make sure to test this version properly.


Framework written in the Ruby programming language

If no issue will be found, final release is expected at Monday, 19th of June. 

Changes since 4.2.8

To read about the changes for each gem, please read the changelogs:

  • Action Mailer CHANGELOG
  • Action Pack CHANGELOG
  • Action View CHANGELOG
  • Active Job CHANGELOG
  • Active Model CHANGELOG
  • Active Record CHANGELOG
  • Active Support CHANGELOG
  • Railties CHANGELOG

You can view full list of changes here.

Nowadays, most of the new Rails projects are being created using Rails 5. But 4 series is also supported due to big amount of large projects that was created using it. Updates of Rails 4 series are not global, they just fix small issues and bugs.

Dmitry Karpunin
Chief Front-End Developer at Evrone


Here are the checksums for 4.2.9.rc1:

$ shasum -a 256 *-4.2.9.rc1.gem
f989619bd008bb131ac51c9523a67cf07b04fd02ccbb6a4c862a7e91399abf29  actionmailer-4.2.9.rc1.gem
ce36a4c32d738bdf0f225c427ed7e31c2e681004fa827f7bbe0c4bd05fb6b264  actionpack-4.2.9.rc1.gem
e815d4d9ee866145cf9ae78716fed8453a12eace055f4fbd80ae7f4b74e08d27  actionview-4.2.9.rc1.gem
b03d68ecc055160bc903055649bb47b57de09b68749bd6e40e2e4378cd9a3ce7  activejob-4.2.9.rc1.gem
734e28fff15f3319be32b6e3cba40519e7c730c88ba49f0b334eb1d63f32c872  activemodel-4.2.9.rc1.gem
a2f25b8132cca325bf855d7e45c809a122282d8e65f3d6580e40da624c71996a  activerecord-4.2.9.rc1.gem
7b3b69479110a64f50ac53681f076b5ec21a073b1120c9d7ab201eec0af09d12  activesupport-4.2.9.rc1.gem
c7de4f0e62498acf407928a5f147a9e297a63e900882f627489e91b033026b69  rails-4.2.9.rc1.gem
425e43203b35fa28dd9708848c4aaa11706c53fcd75819228a92e6893653f8da  railties-4.2.9.rc1.gem

You can use it to verify your version of the gem.

Ruby/RoR News Digest 11 - 17.01

A migration path to Bundler 2+, the updated Ruby bibliography, testing signed and encrypted cookies in rails and more
17 January 2020   65

Greetings! I hope your week went great! Here's new Ruby news digest.

Learn the 3 ways webpack surprises coders, about the the pros and cons of using structure.sql in your Rails app, developers feedback on contributing to Ruby MRI and many other interesting things.


  • A Migration Path to Bundler 2+

The migration path the Bundler team could use for moving to Bundler 2+

  • 3 ways Webpack surprises web developers

Check what skilled learned helping with Webpack questions on StackOverflow for a month and why it may be really surprising even for the experienced programmer

  • The Ruby Bibliography

Great and recently updated list of must-read Ruby books

  • The Pros and Cons of Using structure.sql in Your Rails App 

Learn about the great differences and benefits of using structure.sql against the default schema.rb schema formats in your RoR apps

  • Contributing to Ruby MRI

Developer's feedback on contributing to the big Ruby "thing"


  • Effectively Using Materialized Views in Ruby on Rails

Learn what gives the materialized views in Postgres and how to use them in Rails

  • Testing Signed and Encrypted Cookies in Rails

Somethings, even such tasks come across the devs, so it's time to learn how to do that by checking author's experience


  • Rufo

An opinionated ruby formatter, intended to be used via the command line as a text-editor plugin

  • Solidus

Free and open-sourced ecommerce platform, built on the Rails


  • 165: Rubyfmt with Penelope Phippen

The talk of 4 hosts (Coraline Ada Ehmke (speaker, writer, teacher, open source advocate and technologist with 20 years of experience), Jamey Hampton (an artist who turned into a programmer), Rein Henrichs(software developer) and Mandy Moore (show manager and producer of Greater Than Code)) with a Ruby developer and director of Ruby Central, ex-maintainer of RSpec about the popular code formating tool