π β v3.1 works great for many legacy devices (ISR G2, ASR 1000), but newer gear sometimes prefers v3.0 or even a direct serial cable.
This article dives deep into everything you need to know about version 3.1: what it is, why it matters, how to install it, troubleshooting common pitfalls, and best practices for network engineers. cisco usb console driver 3.1
Prior versions (2.x and 3.0) had several known issues: π β v3