Hi IG,
PGP has been re-branded to Symantec Encryption Desktop (SED), whereas Symantec Endpoint Encryption (SEE) is another encryption solution from Symantec, which works on Disk encryption and File Encryption.
Both products under the same serial number:
Both this products are licensed under the same license agreement.
Symantec Encryption Management Server (Previously known as PGP server) and the latest version is 3.3.2 MP8/10.3.2 MP8. This is one that you are using, below is the landing page with all the relevant articles for this:
Encryption Management Server
https://support-prod.symantec.com/en_US/encryption-management-server.62369.html
Encryption Desktop
https://support-prod.symantec.com/en_US/encryption-desktop.62377.html
Symantec Endpoint Encryption 11.0 is the other product that is available under the same license and serial number and the latest version is 11.0.1, below is the landing page with all the relevant articles for this:
Endpoint Encryption
https://support-prod.symantec.com/en_US/endpoint-encryption.55414.html