The .NET Framework used by Pathfinder has been upgraded from .NET Framework 2.0 to .NET Framework 4.6. This breaks compatibility with Windows XP. Windows 10 comes with .NET Framework 4.6 installed by default. Windows Vista, Windows 7, and Windows 8 support .NET Framework 4.6, but the framework must be installed manually.

For Pathfinder installations on 7000 series PC hardware, .NET Framework 4.6 is already supported, so no additional work is needed to install this update.

Pathfinder installations on 6000 series or earlier PC hardware do not support this update. The last major Pathfinder version supported on 6000 series PC hardware is Pathfinder version 4.