It's such a long story about why, but I have a pair or Brocade ICX 7450-24 switches that were never deployed that I'm just rolling out now. I'd love to update the firmware first, but it appears Ruckus has taken over Brocade. Show version provides, among other things: SW: Version 08.0.20T213. So that number seems like the software version, and it appears to be a few minor versions behind 2021 versions.
Question is: does anyone know if Ruckus branded software images are compatible with Brocade branded hardware?
Thanks to everyone, but special shout out to you Hasim. That 08030u update from May 2020 seems to have gone smoothly straight from the factory 08020t. Nice. This version has support for NTP and TLS 1.2 and probably a bunch of other stuff I haven't touched yet, which is nice. Good to be updated to the current decade, at the very least - d.
However, as mentioned above by Justin; you will need to upgrade in steps as your switches currently have very old software. Please pay close attention to the release notes on the 'Documents' tab on the Ruckus support site at the link above.