Which train do i choose within IOS XE?

[jhalldn]

We're running a couple of Cisco Catalyst 4500-X (SUP7) and using the 3.4 version. I was looking for a upgrade and saw that there was two "new" versions ready for download. I haven't read the release notes yet, so i'm just asking kindly for experiences within 3.4, 3.5 and 3.6 releases. I'm looking for BFD support, so i know i need the 3.5 version for that, but should skip BFD for the sake of stability? Do i choose 3.5 or just go all in for 3.6?

I know i must read the release notes anyway (before upgrade the boxes) and choose from what ever feature i need, must have, don't need or just want.

Any thoughts or ideas?

Best J

[Leo Laohoo]

For stability sake, use 3.5.3E.  

Don't forget to upgrade the ROMmon FIRST or you won't be able to load 3.5.3E properly.

[jhalldn]

Thanks a lot for your input. We have the latest ROMMON installed already (15.0(1r)SG10 ), so that won't be any problem. 3.5.3E: here i come :)

PS. a colleague parentally upgraded a box with ROMMON SG6, and that went well. DS.

Best J

[jhalldn]

A friend mailed me this evening, to let know about a bug that can break this step. There's an bug with ID CSCu04334, that puts the mgmt-if disabled. The bu search shows that 3.6.0E is fixed release. Don't know if that's solved in 3.5.3E...think it's gonna be rethink again...we're using the Fa1 for OOB solution.