We have a small number of remaining ICX 7250s which are running 8.0.95. They are mostly in environments that require a quiet switch (albeit not fanless) with more than 12 POE ports, and I don't really have budget to replace them.
I upgraded one of our spares to 9.0.10j_cd7T213 to play around. There are the usual oddities I've also seen with version 10 (prompting for a username on "enable" seems like a behavior change specifically designed to enrage experienced network engineers...) but only one thing I really found concerning. By policy we disable all management except SSH and serial console on all network devices - it's non-negotiable.
Booting our standard configuration on the 7250 with 9.0.10 yields this, just before the console first prompts for login:
Config parsing complete: 0.43 percent time: 00:10 parsed: [ver 09.0.10j_cd7T213]
Error - Config send failed
Error [1 ui_common_send: Not able to apply - itc error please try again] parsing line: [no web-management https]
show run from a privileged exec does show the "no web-management https" statement, and it does not appear the switch is actually listening on port 443, but, more disturbingly, if I then interactively reconfigure the switch with "web-management https" and then "no web-management https" it throws the same "Config send failed" error and rejects all subsequent configuration statements.
Is this the kind of thing to expect from 9.0.10? I haven't tried downgrading a switch from 9 or 10 to 8, but maybe this is the time...