GitHub Enterprise - The best way to build and ship software

The 2.9 series release notes contain important changes in this release series.

Security fixes

ghe-update-check --help would fail if ghe-update-check was already running.
The @-mentions suggester didn't work in IE11.
Ordered lists rendered incorrectly in custom messages on the sign in page.
The SAML record dumping and updating utility, ghe-saml-mapping-csv, was not exposed to the admin user.
When two-factor authentication is required, LDAP team synchronization could fail if a member hasn't configured 2FA for their account.

The verbosity of logging for the longpoll service, which provides live updates to Issues and Pull Requests pages, has been lowered.

We incorrectly redirect to the dashboard if you accessed GitHub Enterprise using an alias while in private mode. This might happen if you set a fully qualified domain name but the subdomain resolves correctly.
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.
Deleting a search index doesn't delete all associated metadata, which are then incorrectly reused if a new search index is created. This causes search index repair jobs to be reported as finished in the site admin when they were not.
After changing the visibility of a repository, wiki search results have a conflicting number of displayed search results. Administrators can reindex the wiki through the site admin dashboard. (updated 2017-11-09)
The create team API endpoint returns a 500 error if LDAP Sync is enabled and the team already exists. (updated 2018-01-09)

Thanks!

The GitHub Team