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

Security Fixes

• Packages have been updated to the latest security versions.

Bug Fixes

• Pre-receive hooks would fail if the pre-receive environment lacked a /etc directory.
• Active git processes were not displayed on the Management Console's maintenance page
• Nameid-format matching on SAML response is too strict when value is "unspecified", which can cause an error with the "Another user already owns the account." message if the IdP changes NameID. (updated 2018-06-25)

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.
• GitHub Enterprise clustering can not be configured without https.
• Pull request review comments are missing from an import with ghe-migrator.
• The import of protected branches with ghe-migrator fails when the creator of the protected branch no longer exists on the source instance. (updated 2018-10-31)
• The import of project boards with ghe-migrator fails when the creator of a card on the board no longer exists on the source instance. (updated 2018-11-21)

Thanks!

The GitHub Team