How GitHub's protocol changes impact your Puppet code deployments
GitHub is in the process of improving Git protocol security by removing insecure DSA keys and legacy ciphers, updating requirements on RSA keys, and adding more secure key signature algorithms ECDSA and ED25519. On January 11, GitHub ran a planned brownout event day to shake out affected clients. Our team at Puppet discovered that many users of Code Manager and r10k were affected by this change.