The Bundler 2.0 announcement includes context and a more detailed explanation of the changes in this version. This is a summary of the biggest changes. As always, a detailed list of every change is provided in the changelog.
This release focuses on removing offical support of versions of Ruby and RubyGems that have reached their end of life, with a few other small breaking changes.
github: "some/repo" gem source to use the https schema by defaultSTDERR