What are the different between 17.6.5 and 17.9.3

[David A Tran]

Why Cisco has two different version of IOS-XE recommended? Which one should I choose to upgrade our C9300-48P. I can't find information to compare the different between two of that version.

[Flavio Miranda]

Hi

 Best way is look at release notes.

Whats New in Cisco IOS XE Bengaluru 17.6.5

Hardware Features in Cisco IOS XE Bengaluru 17.6.5

There are no new hardware features in this release.

Software Features in Cisco IOS XE Bengaluru 17.6.5

There are no new software features in this release.

Whats New in Cisco IOS XE Cupertino 17.9.3

Hardware Features in Cisco IOS XE Cupertino 17.9.3

There are no new hardware features in this release.

Software Features in Cisco IOS XE Cupertino 17.9.3

There are no new software features in this release.

Hardware and Software Behavior Changes in Cisco IOS XE Cupertino 17.9.3

There are no behavior changes in Cisco IOS XE Cupertino 17.9.3.

[brannonsweet@cox.net]

I think he was asking why are their 2 trains.  Does one offer differ features over the other?

[ServerWrangler · Accepted solution]

Only major difference I can find for C9300 platform specifically is that 17.6.x(March 31, 2026 ) will go EOL before 17.9.x(March 31, 2027)

Here are the links
IOS XE 17.6.x EOL
IOS XE 17.9.x EOL


Hopefully, this helps ya'll!