The software version discussed in the provided documents is 8.10.151.0, which is associated with the Cisco 8540 Wireless Controller. This version is referenced multiple times in the context of AP crashes on specific models such as the 9120AXI and 2800I Access Points.
The documents primarily discuss software version 8.10.151.0 running on the Cisco 8540 Wireless Controller, highlighting issues with AP crashes.