I need the list of all the ruby versions, rails versions, and gem versions which are support bundler 2.2.13.
I am using ruby 2.6.3p62, gem 3.0.3, rails 4.2.11.3. And my bundler 2.2.33 which is not supported in rails 4.2.11.3 and I want to replace it with bundler 2.2.13 how can I do that?

CodePudding user response：

Rails 4.2 only supports bundler 1.x. Newer Rails versions (i.e. Rails >= 5.0) support any bundler 2. Each Rails version supports varying Ruby versions. Check the release notes of your Rails version for details.

As such, you can either upgrade your Rails version to 5.x at least or downgrade your bundler to 1.17.3 (the latest bundler version before 2.0).

CodePudding user response：

I don't think there is a way to get all the supported gems that would support a particular bundler version. But you can check on a particular gem if it supports your bundler version or not. For example see this: https://rubygems.org/gems/rails/versions/4.2.11.3 which says this version of rails requires bundler >= 1.3.0, < 2.0 (in runtime dependencies).

This is usually added on the gemspec of the gem as far as I know. For example here is the rails 4.2 gemspec: https://github.com/rails/rails/blob/4-2-stable/rails.gemspec which specifies the bundler version.

But getting an old version of rails to support a new bundler version is not just changing the gemspec there could be many things which might break so it is advisable to use the specified versions.