Silly question but I want to ensure I can upgrade my firmware from version 7.4.0 to latest 7.4.1a non-disruptively during business hours?
Looking at the release notes for upgrade migration path it only mentions "Migrating from FOS v7.3 - Any 8G or 16G platform running any FOS v7.3.x firmware can be non-disruptively upgraded to FOS v7.4.1a."
We are on version 7.4.0 currently.
Short answer: Yes.
Slightly longer version: I do these updates during changes windows, but applying the filter of: "Will the VMWare admins even see anything in their logs when this happens?" I would answer that they won't, and so doing it during business hours would be fine.
If anything, I would say that in neglecting to mention 7.4.0 to 7.4.1 under "migrating" the message is that it isn't a migration, just applying patches within the same version. And no disruption to traffic should be expected.