RubyMine Plans to Retire Support for Rails 3 and Other Outdated Features

Dear all,

As some of you already know, RubyMine 2022.1 was shipped without support for Rails 3. The reason for this decision was quite simple: Rails 3 reached End Of Life many years ago, and most of you had long since switched to the newer Rails releases. Hence, continuing to support Rails 3 in RubyMine simply didn’t seem practical given the amount of effort that would have been involved.

However, we didn’t communicate this decision in a clear and timely manner, which resulted in reasonable questions from some of our users who still use Rails 3. We would like to apologize for that and assure you that we fixed the issues that were caused when Rails 3 support was discontinued as part of the recent bugfix update – v2021.1.1. Check out the related ticket for details: RUBY-28806.

That said, please note that Rails 3 will no longer be supported starting with the next major release – RubyMine 2022.2. This means that Rails features that are shared among Rails 3/4/5/6/7 will work, but anything specific to Rails 3 (mainly server run configurations) will cease to work. Starting with RubyMine 2022.2, we will no longer be fixing any new issues related to Rails 3.

While we are at it, we’d like to also notify you about our plans to deprecate support for some other features and technologies that we consider outdated:

  • Rails View, a Rails-specific way to display the project structure in RubyMine, is now disabled by default due to a lack of popularity among RubyMine users. Existing users who use the Rails View will still have access to it in the current major version and may explicitly reinstate it by following the instructions here. Our plan is to make this feature available through a separate plugin for RubyMine in one of the next major releases.
  • RCov gem – It will be disabled by default in v2022.2, but the IDE will suggest you re-enable it if it detects that your configuration needs it. The full retirement of RCov is planned in the final major release this year (v2022.3). See RUBY-29587 and RUBY-29645 for the details.
  • Support for the pre-load servers – Zeus, Spork, and Nailgun, as well as the JRubyCucumber run configuration type, will be deprecated in v2022.2. Related ticket: RUBY-29506.

RubyMine v2022.2 should be released sometime in the 3rd quarter of 2022. Please take action accordingly and let us know if you have any further questions.

Happy developing!
The RubyMine team

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