Our team is dealing with rules designed for 10.2, but would like to see if we can leverage some of the new 10.4 debugging and testing features. For various reasons, we can't just update the rulebase and tools to 10.4 for several months, so we are stuck developing in 10.2
I would like to run the two in tandem, if possible, but the installer throws an error demanding that the previous version of OPM be uninstalled.
I understand I might be stuck finding an additional PC to test with, but figured if anyone has tried this, it's worth asking about.
OPM 10.4 and OPM 10.2 can't both be installed on the same instance of Windows. Many people use a virtualization solution like Oracle's VirtualBox to run both versions on the same physical machine.