Cisco NX-OS and IOS Upgrade Recommendations

It would be best if you had a partnership with Cisco (Vendor Relationship – check out my blog post on this). If you do, and hopefully you do, I recommend always contacting them and verifying the recommended NX-OS/IOS. Always do your research before deciding on a standard.

Cisco NX-OS:

https://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/nx-os-software/220437-recommended-cisco-nx-os-releases.html

Cisco 9000 IOS:

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-9300-series-switches/214814-recommended-releases-for-catalyst-9200-9.html