Cisco 9300 upgrade path from Gibraltar to Fuji possible??

[victoriabardy]

Hello All,

I have  a cisco 9300 2 member stack that I need to add another 2 members to.  My current IOS on the stack that is already in production is: Cisco IOS Software [Fuji], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 16.9.4, RELEASE SOFTWARE (fc2)

The version running on the two members I want to add is: Cisco IOS Software [Gibraltar], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 16.12.4, RELEASE SOFTWARE (fc5)

Is it possible to upgrade the two members that are in production to the software version running on the new two members I want to add?  Since I need all four switches to be on the same software I just want to find a way to make this work.

Does anyone here on the forum have the upgrade path for this or any guidance as to how I can get all four switches on the same software?

Please let me know if you do.

Thank you.

Rgds,

Vicky

[Flavio Miranda]

Hi

 They are pretty closer version so you can move from Fuji to Gibraltar with no problem.

This guide have everything you need.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/16-12/release_notes/ol-16-12-3850.html#task_mfv_lgq_k3b 

[victoriabardy]

Hello Flavio,  Thank you for your response.  That link is helpful but the wrong model of switch.  I am now looking for a way to downgrade two switches to 16.4 if that is possible?  Wondering if I can find that ios release.  Do you have any idea?

If so, please let me know.  Thank you.

[Flavio Miranda]

  Why do you want to downgrade. If I were you, I´d put all of them in 17 version.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-3/release_notes/ol-17-3-9300.html 

[Leo Laohoo]

Go straight to 17.3.X. 
Avoid 16.12.X because that train is not stable.