Initialization tones timing changed on 3.6.10

I hope it isn’t too stupid a question,
After upgrade to 3.6.10 from 3.6.9 the initial tone timing after connecting the battery has changed.
There used to be a small (5-10 sec) delay before the tones started, now it is immediately after connecting the battery.
I don’t have any issues or anything, just curiosity.

P.S. when connecting the usb cable, it’s the same timing as it always was.

Some of the boot timing changes based on the accessories fitted, if you have CAN enabled etc…

O.K, thank you @philip