IMO, it is nothing to worry about, when you updated the firmware you ssh keys changed and since old ssh keys get stored on your host machine under ~/.ssh/known_hosts, it sees a conflict and gave this warning. You can rectify this by deleting old keys, open file ~/.ssh/known_hosts with a suitable editor like vim or nano and delete the line containing old keys and try ssh again.
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	Ayan Pahwa
@Ayan Pahwa
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			Best posts made by Ayan Pahwa
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    RE: Omega 2+ suddenly burnout!!!posted in Omega Talk
 
Latest posts made by Ayan Pahwa
- 
    RE: Omega 2+ suddenly burnout!!!posted in Omega Talk
IMO, it is nothing to worry about, when you updated the firmware you ssh keys changed and since old ssh keys get stored on your host machine under ~/.ssh/known_hosts, it sees a conflict and gave this warning. You can rectify this by deleting old keys, open file ~/.ssh/known_hosts with a suitable editor like vim or nano and delete the line containing old keys and try ssh again.