Updates are installed automatically, similar to Steam updates. When you start vorpX Control, vorpX checks for available updates.
The first DK2 ready version of vorpX will probably require Extended Mode. Direct to Rift works for a few games already, but in general it’s a lot more difficult to implement in a driver like vorpX compared to native apps since the Oculus driver hooks games similar to vorpX, which creates a conflict between both programs.
You can force many games to the Rift through the vorpX config app though, which makes working in Extended Mode a lot easier.