Release notes for GitHub Enterprise Server versions 2.20.0+ have moved to GitHub Docs. Release notes for versions prior to 2.20.0 will remain on GitHub Enterprise Releases
Packages have been updated to the latest security versions.
Bug Fixes
Viewing the profile of a user with a username similar to a common HTML error page, for example 404-html, would display the error page and not the user's profile.
Reattaching a forked repository to its parent after changing the visibility would fail for the second and subsequent forks.
Known Issues
On a freshly set up GitHub Enterprise without any users, an attacker could create the first admin user.
Custom firewall rules aren't maintained during an upgrade.
svn checkout may timeout while the repository data cache is being built. In most cases, subsequent svn checkout attempts will succeed.
Issues cannot be closed if they contain a permalink to a blob in the same repository where the file path is longer than 255 characters.
Resque workers may not be cleaned up following a configuration run leading to a growing number of stale workers which in turn could lead to high memory consumption.