This article goes over the benefits and considerations when reviewing the upgrade from previous versions of Symantec Encryption Management Server (SEMS).
The following is a historical reference to versions of SEMS highlighting some of the improvements available for each version:
Considerations for upgrading to SEMS 10.5:
With new versions of Symantec Encryption Management Server, older versions reach the End of Life phase. For a listing of all Encryption products and their EOL dates, see article 152880.
As mentioned above, Symantec Encryption Management Server has used TLS 1.0/1.1 for some features and backward compatibility for Symantec Encryption Desktop client versions 10.3.x and older or Symantec PGP Viewer application for Android devices.
Symantec Encryption Management Server 3.4 and Symantec Encryption Desktop 10.4 and above use TLS 1.2 as the default communications protocol. TLS 1.0 is still enabled on these newer versions of the software in order to support older client communications. Symantec Encryption Management Server 3.4.2 MP1 will be the last version to have TLS 1.0 enabled by default.
Starting with Symantec Encryption Management Server 3.4.2 MP2 and continuing with SEMS 10.5, TLS 1.0 will be disabled by default, and TLS 1.2 will be the only protocol available for secure communications.
It is still possible to configure the Symantec Encryption Management server to use TLS 1.0/1.1 for backward compatibility for Symantec Encryption Desktop 10.3.x or Android devices, and some other features. See below for the considerations as this applies to the SEMS 3.4.2 MP2 and newer during upgrades.
SEMS 10.5 will still support SED 10.3.2 clients, however, Symantec Enterprise Division strongly recommends upgrading these clients as soon as possible as 10.3.2 reached EOL July 31st, 2020.
Considerations before upgrading to Symantec Encryption Management Server 3.4.2 MP2 and newer:
Tip: For the current version of SEMS, see article 156303.