Do the Piwis 3 updates replace Piwis 2?

 Possible to get Piwis 3 program work with Piwis interface tester 2

This answer for the question whether Piwis 3 diagnostic program can work with Piwis interface tester II
It may be an interesting subject, I’m sure there is some information about this out here.
The Piwis 2 interface is a lot more robust piece of equipment, compared to the cheesy and flimsy looking and feeling interface produced by Actia for Piwis 3.
Originally designed for the VW ODIS system,  the VAS 6154 VCI is quite the service needy piece. [Breaks easily] not a hard comparison to make.
Porsche went cheap on this VCI for Piwis 3. [my humble opinion, way below Porsche standard!]

There is a service from Poland and Ukraine [If I remember correctly] that can make the Samtec based Piwis 2 VCI,  to work with Piwis 3, unfortunately their charges are just as much and frankly cost prohibitive as the New Piwis 3 VCI.

Do the Piwis 3 updates replace Piwis 2?

Diagnostics application is used for communication with control units. You can search for, identify, code and control program units, read out the event memory, execute complex processes, change drive links and execute routines.

Guided fault finding (GFF) generates a test plan for a fault code. This test plan shows the best sequence for carrying out tests. GFF compiles a list of recommended tests, documents and wiring diagrams

Actual values/input signals functions display you the actual values and input signals of control units

Drive links/tests function displays the drive links of control units, allows you to change the parameters of these drive links and run test routines for individual control units

Maintenance/repairs function group – use this function to call up control unit-specific processes that cannot be implemented generically from the ODX data

Coding/programming function group – use this function to write coding values. Piwis 3 can code Values automatically or set manually. This function group includes (Automatic coding, Manual

coding, Customer-specific settings, and Factory settings) coding modes

Logging – use this function to activate logging for diagnostics, guided fault finding (GFF) and measuring equipment applications. Temporary and permanent working log can be created

Filter – use this function to limit the view of the control units installed in the vehicle. In the diagnostic application, you can create, edit, activate, deactivate or assign filters

Wiring diagrams application is the representation of physical connections and layouts of circuits

Measuring equipment interface work for DC and AC voltage measurement, direct and alternating current measurement, diode testing, resistance measurement, continuity/open circuit testing, showing voltage, current and resistance over time (oscilloscope function)