Major difference between 8.3.143.0 and 8.4.x.x / 8.5.x.x for Cisco WLC

[MikeBz]

Hi!

Im having a hard time verify what's the key difference between different upgrade versions for Cisco's wireless controllers. I've got the question myself from a company I soon will upgrade their WLC to a new version. They are currently running version: 8.3.112.0 and my recommendations is to go towards 8.3.143.0, due to Cisco's recommendations (https://www.cisco.com/c/en/us/products/collateral/wireless/8500-series-wireless-controllers/bulletin-c25-738147.html)

But the company I will upgrade the WLC's want to know whats the difference between 8.3.143.0 and 8.4.x.x , 8.5.x.x. Can anyone assist here..?

Br, Mike

[Leo Laohoo]

1. Don't use 8.4.X.X..
2. Regarding 8.3 vs 8.5 will depend entirely on what APs you've got. Have you ready the Release Notes?

[MikeBz]

Ok, the AP's are 2700-series.
Ive read the release notes, but can't find the major difference or why they should use the 8.5.x.x from the previously 8.3.x.x.
br Mike