This incident has been resolved.
Dec 14, 10:16 PST
We reverted the change that caused the SAML outage however we are still verifying that this fix is comprehensive, and will be monitoring things for the rest of the night and through tomorrow. If you have any issues logging in please contact our customer support team at email@example.com
or call the Support number listed on our site.
Dec 14, 01:37 PST
It appears that a recent deploy broke SAML authentication for some or all users. We are investigating. For now, users should log in user username and password or via GitHub.
Dec 14, 00:09 PST