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Update GitHub SSH known host keys - #1982
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JamesIves merged 2 commits intoJul 5, 2026
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Looks good! verified these against the official docs.
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Description
This updates the GitHub SSH known-host entries used during SSH setup.
The action now uses GitHub's current RSA, ECDSA, and Ed25519 host keys from the official SSH fingerprint documentation, and no longer writes the DSA/DSS entry.
GitHub SSH fingerprint docs:
https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/githubs-ssh-key-fingerprints
Testing Instructions
configureSSH.Additional Notes
This keeps the existing behavior shape and only updates the known-host key material.