Ruby Versions

How do I specify my app's Ruby version?

You have two options:
  • Write your Ruby version to a file called .ruby-version in the root of your git repo
    • echo "2.6.3 > .ruby-version"
    • git add .ruby-version
    • git commit -m "Set ruby version"
  • Or you can manage it in your Gemfile
    • ruby "2.6.3"
    • bundle
    • git add Gemfile Gemfile.lock
    • git commit -m "Set ruby version"
For legacy versions of Ruby, we only support the latest patch versions.
Here's a list of supported Ruby versions that are currently supported:
  • 3.0.3
  • 3.0.2
  • 3.0.1
  • 3.0.0
  • 2.7.5
  • 2.7.4
  • 2.7.3
  • 2.7.2
  • 2.7.1
  • 2.7.0
  • 2.6.9
  • 2.6.8
  • 2.6.7
  • 2.6.6
  • 2.6.5
  • 2.6.4
  • 2.6.3
  • 2.6.2
  • 2.6.1
  • 2.6.0
  • 2.5.9
  • 2.5.8
  • 2.5.7
  • 2.5.6
  • 2.5.5
  • 2.5.4
  • 2.5.3
  • 2.5.1
  • 2.5.0
  • 2.4.10
  • 2.4.9
  • 2.4.8
  • 2.4.7
  • 2.4.6
  • 2.4.5
  • 2.4.4
  • 2.4.3
  • 2.4.2
  • 2.4.1
  • 2.4.0
  • 2.3.8
  • 2.3.7
  • 2.3.6
  • 2.3.5
  • 2.3.4
  • 2.3.3
  • 2.3.2
  • 2.3.1
  • 2.3.0
  • 2.2.10
  • 2.2.9
  • 2.2.8
  • 2.2.7
  • 2.2.6
  • 2.0.0
  • 1.9.3
  • 1.8.7
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