The 2.13 series release notes contain important changes in this release series.

Bug Fixes

• Repositories migrated with ghe-migrator we not automatically re-indexed so weren't returned in the search results until manually re-indexed.
• Users could encounter a 500 Internal Server Error when viewing a pull request on a repository imported with ghe-migrator that contains references to another pull request the user does not have access to.

Changes

• Wikis for forked repositories now have the "Restrict access to collaborators" setting enabled by default.

Known Issues

• Images uploaded to issues save with an absolute URL, so they can be broken if the hostname changes.
• 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.
• Git LFS tracked files uploaded through the web interface are incorrectly added directly to the repository.
• Pull request review comments are missing from an import with ghe-migrator.

Thanks!

The GitHub Team