Why “Works on the Latest Firmware” Ages So Quickly
Firmware sits at the top of the compatibility chain: it determines which key generations exist. When a system update introduces a new generation, every “works on the latest firmware” statement written before it becomes historical.
A moving target
“Latest” is not a version. It is a pointer to whatever is current at the moment you read it, which is why it cannot be checked later.
What a useful statement looks like
A useful compatibility statement names the revision and the environment it applies to. Everything else is marketing.