Upgrading from PGP Desktop 10.0.3.1 to latest version

Hi,

We are looking to upgrade our existing (and obsolete) PGP Desktop (10.0.3.1) implementation to the latest version, whatever that may be. I'm VERY new to PGP so don't really have any knowledge on it, but the task has landed with me anyway. :-)

the functions of PGP Desktop we currently use are:

1. PGP Messaging
2. PGP Virtual Disk
3. PGP Zip
4. PGP Viewer

So, I have some questions (these will be simple to you guys) to start off:

1. What is the name and version of the latest equivalent product to PGP Desktop 10.0.3.1?
2. Is there an upgrade path from 10.0.3.1 to the latest version?
3. Does it support the above functions?
4. What components does it use, i.e. Server backend, SQL database, client.
5. Is it Windows 10 compliant?

Sorry for all the questions, but I really am going into this pretty much PGP blind.

Thanks,

Steve