MacIosInfo

Resolve a macOS build number (the value Xcode writes into BuildMachineOSBuild, e.g. 24G830) into a macOS version and marketing name.

MacIosInfo.macos_build_to_macos_version(build_number: "24G830") #=> "15.7.9"
MacIosInfo.macos_build_to_os_name(build_number: "24G830")       #=> "macOS Sequoia"
MacIosInfo.macos_version_to_os_name(version: "15.7.9")          #=> "macOS Sequoia"

Add this line to your application's Gemfile:

gem 'mac_ios_info'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install mac_ios_info

Returns the exact macOS version for a known build number.

MacIosInfo.macos_build_to_macos_version(build_number: "20D80")  #=> "11.2.2"
MacIosInfo.macos_build_to_macos_version(build_number: "24C101") #=> "15.2"
MacIosInfo.macos_build_to_macos_version(build_number: "25G83")  #=> "26.6.2"

A build number begins with the Darwin (kernel) major version, so when a build is not in the table the major version is still derived from it rather than giving up:

# a point release published after this gem was updated
MacIosInfo.macos_build_to_macos_version(build_number: "25Z999") #=> "26"

"UnKnown" is only returned when even the release family cannot be determined:

MacIosInfo.macos_build_to_macos_version(build_number: "99A1")   #=> "UnKnown"

Goes straight from a build number to the marketing name. This works for every build of a known release family, including ones not in the version table.

MacIosInfo.macos_build_to_os_name(build_number: "24A335") #=> "macOS Sequoia"
MacIosInfo.macos_build_to_os_name(build_number: "24Z999") #=> "macOS Sequoia"

MacIosInfo.macos_version_to_os_name(version: "10.13.5") #=> "macOS High Sierra"
MacIosInfo.macos_version_to_os_name(version: "11.2.2")  #=> "macOS Big Sur"
MacIosInfo.macos_version_to_os_name(version: "26.6.2")  #=> "macOS Tahoe"
MacIosInfo.macos_version_to_os_name(version: "15")      #=> "macOS Sequoia"

Exact build numbers are listed for macOS High Sierra through macOS Tahoe. Builds outside that table resolve to the release family via the Darwin major version, so a new macOS release does not have to be added here before it reports correctly.

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/tarappo/mac_ios_info. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the MacIosInfo project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.