After updating, verify the license has been applied correctly:
Go to the Agent tab, select inactive or decommissioned computers, and remove them to bring your count below the licensed limit. License Expired Alert Post-Update
Version 11 users should be aware of ManageEngine's EOS policy. After every major release, the previous version is supported for a considerable period, allowing users to plan their upgrades effectively. When a version reaches its End of Support, it no longer receives security updates, features, enhancements, or technical support****.