As previously announced, the format of GitHub authentication tokens has changed. The following types of tokens are affected:
Due to the updated format of GitHub authentication tokens, GitHub Connect will no longer support instances running GitHub Enterprise Server (GHES) 3.1 or older after June 3, 2022. To continue using GitHub Connect, an upgrade to GHES will be required 3.2 or newer than 3 June. GitHub Connect is required to use the latest features, such as Dependabot updates, license synchronization, GitHub.com action synchronization, and unified contributions.
GHES customers looking for a Upgrading GHES may follow the instructions given in the instructions for Upgrade to GitHub Enterprise Server.