JLKM asked in the farmers Telegram group if certified node owners can make upgrades without losing their certification status. After brief discussion with @andreaspow, initial conclusion is that this is a tough call.
We would at minimum need some kind of process to determine that the added components are new and come from a reputable vendor. That could be having the farmer send documentation in the form of receipts and photographs. Comparing this against info reported by the node after the upgrade could provide some reasonable assurances.
Of course, that’s a process that would need to be managed and thus require resources. Then again, when it comes to larger form certified nodes than Titans, it should be expected that at least replacing a disk from time to time would be necessary, so I think we can’t avoid this question altogether.
For now, I think it’s best to advise Titan owners to avoid upgrades until we can reach a decision. Does anyone have further thoughts on this?