Here's another datapoint: number of personal and servers HDD firmware upgraded over three decades: a couple thousand. Our storage systems at work regularly sh

Here's another datapoint: number of personal and servers HDD firmware upgraded over three decades: a couple thousand. Our storage systems at work regularly ship firmware updates with bugfixes. I have never seen a FW update introduce new bugs. But of course there has been the occasional HDD that didn't spin up during the (required) power cycle