@Jannek999 

Excellent! It will make other users have more confidence in updating to the latest 1.9.1 version.

More details about the 1.9.1 version release note, which is quite like the 1.8.5 version of Deco M5 here:Deco M5_1.8.5 Newly Introduced Advanced Parental Control Features

New Features/Enhancement:
1. Supported more parental control functions, including SafeSearch, YouTube Restricted, APP Time Limits, Always Allowed APPs, Offtime, etc.
2. Enhanced Web Filter, enriched visited/block history and optimized Blocked APPs for parental control.
3. Enhanced security functions of device.
4. Optimized QoS.

Note:
1. This update retains nearly all the legacy parental control features previously offered for free, while also introducing new capabilities which can be unlocked by Advanced Parental Control subscription.
2. This firmware release cannot be downgraded to the previous version.

Thank you very much.

Best regards.

  @OZSkeptic 

Hi, thank you very much for the feedback.

You can take the Deco M5_1.8.5 firmware introduction as a reference:

Deco M5_1.8.5 Newly Introduced Advanced Parental Control Features

As for the price, it is closely related to the exchange rate. And there also seems to be a discount for models like Deco M5/Deco M9 plus, since they are newly updated from the original HomeCare service to the new Parental Control service kit. 

Best regards.