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Julia

How json2vars-setter handles Julia, and how the example workflow provisions it.

json2vars-setter integration

Item Value
Matrix JSON key versions.julia
Action output versions_julia
Dynamic-update strategy input julia-strategy (stable / latest / both)
Version source see Version Sources

Supported runners

The example matrix runs on Ubuntu / Windows / macOS:

ubuntu-latest, windows-latest, macos-latest

Any GitHub-hosted runner the setup action supports also works - the OS list is just the os array in your matrix JSON.

Supported versions

Example matrix (what the example workflow runs):

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{
  "versions": {
    "julia": [
      "1.10",
      "1.11"
    ]
  }
}

Latest values tracked by the dynamic-update tooling (auto-refreshed from the release APIs into the version cache):

Field Version
stable 1.11.9
latest 1.12.6

Cache last updated: 2026-06-24T12:28:43.120278.

Setup action (example workflow)

julia_test.yml provisions Julia with the matrix value json2vars-setter produced:

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- name: Set up Julia
  uses: julia-actions/setup-julia@v3.0.2
  with:
    version: ${{ matrix.julia-version }}

References