rack:
  - version: '~> 1.3'
    ruby: ['>= 1.8.7', '< 3.0']
  - version: '~> 2.0'
    ruby: '>= 2.3.0'
  - version: '~> 3.0'
    ruby: '>= 2.4.0'
    gem:
      rackup: '>= 0'
      # thin is not (yet) compatible with rack 3
      # TODO: don't bring in an unneeded server (e.g wiht this puma brings in thin)
      thin:
        github: 'lloeki/thin'
        branch: 'rack-3'
      # TODO: add blanket incompatibility declaration via e.g
      # thin: false
sinatra:
  - version: '~> 1.0'
    ruby: ['>= 1.8.7', '< 3.0']
    gem:
      rack: '< 2.0'
  - version: '~> 2.0'
    ruby: '>= 2.3.0'
  - version: '~> 3.0'
    ruby: '>= 2.6.0'
rails:
  - version: '~> 3.2.0'
    ruby: ['>= 1.8.7', '< 2.4']
    gem:
      bundler: '< 2.0'
  - version: '~> 4.0.0'
    ruby: ['>= 1.9.3', '< 2.3']
    gem:
      bundler: '< 2.0'
  - version: '~> 4.1.0'
    ruby: ['>= 1.9.3', '< 2.4']
    gem:
      bundler: '< 2.0'
  - version: '~> 4.2.0'
    ruby: ['>= 1.9.3', '< 2.5']
    gem:
      loofah: '~> 2.19.1' # solve Nokogiri::HTML4 exception
      bundler: '< 2.0'
  - version: '~> 5.0.0'
    ruby: ['>= 2.2.2', '< 2.5']
    gem:
      loofah: '~> 2.19.1' # solve Nokogiri::HTML4 exception
  - version: '~> 5.1.0'
    ruby: ['>= 2.2.2', '< 2.6']
  - version: '~> 5.2.0'
    ruby: ['>= 2.2.2', '< 2.7']
  - version: '~> 6.0.0'
    # 2.7 excluded because stringio defaults to 3.0
    ruby: ['>= 2.5', '< 2.7']
    gem:
      # superclass mismatch for class StringIO (TypeError)
      stringio: '< 3.0'
  - version: '~> 6.1.0'
    # 3.3 has a bug: https://bugs.ruby-lang.org/issues/20085
    ruby: ['>= 2.5', '< 3.3']
  - version: '~> 7.0.0'
    # 3.3 has a bug: https://bugs.ruby-lang.org/issues/20085
    ruby: ['>= 2.7', '< 3.3']
    gem:
      sinatra: '>= 0.a'
      grape: '>= 0.a'
      pry: '> 0'
  - version: '~> 7.1.0'
    # 3.3 has a bug: https://bugs.ruby-lang.org/issues/20085
    ruby: ['>= 2.7', '< 3.3']
    gem:
      sinatra: '>= 0.a'
      grape: '>= 0.a'
      pry: '> 0'
      # thin is not (yet) compatible with rack 3
      thin:
        github: 'lloeki/thin'
        branch: 'rack-3'
      # TODO: add blanket incompatibility declaration via e.g
      # thin: false
grape:
  - version: ['~> 1.0', '< 1.3']
    ruby: ['>= 2.0', '< 3.0']
    gem:
      activesupport: '< 7.0'
      rack: '< 2.0'
  - version: ['~> 1.3', '< 1.6']
    ruby: ['>= 2.4', '< 3.0']
    gem:
      activesupport: '< 7.0'
      rack: '< 3.0'
  - version: ['~> 1.6', '< 1.8']
    ruby: ['>= 2.5']
    gem:
      rackup: '>= 0'
  - version: ['~> 1.8', '< 2.0']
    ruby: ['>= 2.6']
    gem:
      rackup: '>= 0'
  - version: '~> 2.0'
    ruby: ['>= 2.6']
    gem:
      rackup: '>= 0'
      # thin is not (yet) compatible with rack 3
      thin:
        github: 'lloeki/thin'
        branch: 'rack-3'
      # TODO: add blanket incompatibility declaration via e.g
      # thin: false