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"could drive clock speeds down under heavy thermal loads"

So now it just don't give a shit and fires away at the highest clock, without a care in the world about temperatures?

The clock speed should go down under "heavy thermal load", that's not a bug...

The CPU itself had plenty of thermal headroom, but was overdrawing the power system - which then thermally throttled itself way more aggressively and in a less-controlled manner. The update changes the curve to ensure that the CPU doesn't draw more power than the power system can handle for extended periods. The CPU will still downclock itself as needed if it experiences its own thermal overload.

Are you saying Intel CPUs now can adapt to power loss, instead of just not working? I doubt that very much. The CPU got too hot(easily reaching 100C) so there was definetly not "plenty of headroom", in fact, there was no headroom at all.

It's not a powerloss but voltage goes down. Modern VRMs can also signal their power capabilies and reserves.

If the CPU draws more current than the VRM can handle, this is usually okay within bounds for a very short time, after than you'll get dropping voltage when the VRM starts to self regulate and the CPU will downclock in response.

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