Release Note 3.7

RBS 3.7 is a maintenance release before Ruby 3.4 and rbs-inline migration. It ships without major enhancement.

• mutex_m support

You can install it with $ gem install rbs or using Bundler.

gem 'rbs', '~> 3.7.0'

Read the CHANGELOG for the details.

mutex_m support

mutex_m has been a default gem since Ruby 2.6 and will be a bundled gem in Ruby 3.4. RBS gem had bundled the type definition of the gem for years, but we decided to deprecate the rbs-gem bundled type definition and migrate to mutex_m-gem bundled type definition. This involves an issue because some types of gems declare RBS dependency in manifest.yaml.

You may see some warning message like:

`mutex_m` as a stdlib in rbs-gem is deprecated. Add `mutex_m` (>= 0.3.0) to the dependency of your Ruby program to use the gem-bundled type definition.

If you see this message, add gem 'mutex_m', '>= 0.3.0' to your Gemfile and delete mutex_m from the gems: section in your rbs_collection.yaml.

Note for gem RBS maintainers

If you have manifest.yaml which declares a dependency to mutex_m, remove the dependency from dependencies: section. You may also need to add mutex_m to your .gemspec to declare Ruby dependency.