Where can I download the beta firmware please?

Which firmware from this page should I install: https://www.tp-link.com/en/support/download/tapo-c520ws/v1/#Firmware-Release-Notes

@IsaacZoneMinder Thanks for your quick reply. Do you mean that if I install that beta firmware, I will be able to access GetEventProperties from my Debian?

@Solla-topee I rectify: I do receive notifications even when I'm not in the app. The firmware is: 1.2.10 Build 241025 Rel.55515n. In the Onvif Device Manager app, I think I can access all the items...

@fernajuf I add to my previous post: if I try to access GetSystemDateAndTime in "device_service" it returns the date and time, but if I try to access GetEventProperties in "event_service" it returns:...

@jp_kyoto Hello: I bought my camera, the Tapo C520WS, 10 days ago and I think the detection is not working properly. In the TAPO app I have motion, person, line crossing and camera tampering...