What’s New in v2.7

The Bundler 2.7 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.

A new setting to simulate the next major version (Bundler 4)

With Bundler 2.7, you can configure bundle config simulate_version 4 and get all future Bundler 4 defaults enabled by default. Please do use this setting and contribute to Bundler 4 by leaving us feedback.

Other notable changes

• Improved and more configurable gem generator.
• Better network error handling.
• More resiliency in presence of incorrect lockfiles, or locally installed gemspecs with incorrect dependencies.
• Improved support for default gems like rdoc or irb.
• Improved auto-switch and auto-restart mechanism based on locked version of Bundler.
• Better git source unlocking.

Full 2.7 changelog