Allow key vault references without version
It was previously possible to reference key vault settings without specifying the secret version in the URL. i.e. https://myvault.vault.azure.net/secrets/mysecret/
And would automatically reference the most current version of the secret.
This functionality stopped working after a rollout on 9 August 2019.
This is a very useful feature when you need to use secrets across different environments as it is cumbersome to update the references whenever a secret needs to be updated.