Strangely, I noticed a couple of oddities in my HMS today.
For starters, I still have the option to disable to the PIN requirement… but the only thing it changes when enabled is that I have to enter a PIN just to ARM the system. If I then disable it again, I still have to enter a PIN to disarm HOME, even with no active trigger. The option seems bugged.
In an unrelated issue, I have noticed that the volume is DRASTICALLY quieter. If I hit the LOW setting, I actually have to hold the hub to my ear to hear it. If I set it to HIGH, I can barely hear it more than 10 feet away. Not sure if there is an active topic related to this issue, but I did not find one on initial check.
UPDATE: found the topic here: Sensor hub volume has decreased considerably after latest update