I have a set of 5525-X running FTD via SFR that are on the 6.2.0 level of code and I'm looking to upgrade them to 6.2.3. I can't seem to find a road map telling me if I can just jump to 6.2.3 or if I should jump right up to 6.2.3.9. Calling Cisco up they would just tell me to go right to 6.2.3.9, but I'm not sure if I want to go right to that and I'm gun shy of going all the way to 6.3.x.
I know everyone hates FirePOWER (shit, I do), but I can't dodge this bullet. The powers that be want to upgrade the things while they are in our possession. They don't really want to spend money on anything beyond the 5525-X firewalls FTD is running on right now.
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