Sugar 7.7 reached its End-of-Life (EOL) date on October 15th, 2017. All customers deployed On-Premise on this version in production should upgrade to version 7.9 as SugarCRM will no longer provide customer support, maintenance patches, or bug fixes for 7.7. The same will be true for 7.8 on December 1, 2017 when it reaches End-of-Life as well. Version 7.9 will be supported through November 15, 2018. More information about On-Premise releases can be found here: New Sugar Release Process.
Upgrade paths can be found at Upgrade Paths for On-Site Installations and information on upgrading can be found
Please review the Supported Versions page on the Support site for a complete list of Sugar EOL dates.
If you want to ensure you are up-to-date on all latest Sugar releases, please click the ‘Follow’ button under the Releases space in the community.