Does anyone know what exactly this firmware does?

It seems to get mixed results.

I am only getting 460 on my Jupiter. I am tempted to try this firmware.

*edit* So, I tried the firmware, nothing changed. Tried .96.1  .96  .95, enable cores, bunch of different s**t. Then I put the case back on to restrict airflow and re-flashed the .98.1  - the temps of the back 2 are right around 70, the front 2 are around 60.

But the Jupiter is now reporting 534 and climbing. It will take an hour or so for the hashrate at the pool to normalize, but it is slowly rising as well...

Thus far, it appears these things really do like it hot. Originally I hated the design of the cooling for this device, because I thought it was pretty crappy at cooling... Turns out crappy cooling appears to provide better hashrate, as many others have also reported...