changelog FIBARO System Update 4.621 BETA for Home Center 2

[K.Drozynski 131]

Important notice:
All devices previously added to the system that received support need to be reconfigured.

New improvements:
- Support for https protocol.
- Support for MCO MH-S31x & MH-S22x ZW700 series.
- Support for MCO MH3901-Z version 2.1.
- Support for Qubino 3-Phase Smart Meter.
- Support for Heiman Gas Sensor (HS1CG) version 1.1 & 1.2.
- Support for Donexon radiator thermostat.
- Support for other Z-Wave devices supported by Home Center 3.
- System stability improvements.

Resolved issues:
- Z-Wave service stops responding after updating to 4.620 and using previously added thermostat.
- Few instances of Thermostat & Heating Zone plugin results in system crash.
- In some cases, Home Center Lite gateway stops responding after some time.
- Losing master-slave synchronization after some time in gateway connection mode.
- Master gateway does not detect "central scene" actions on devices added to connected gateways.
- Connected slave gateway need manual synchronization to restore its connection.
- Incorrect default values of FIBARO Heat Controller configuration parameters.
- Sending setProtection action to external sensor of FIBARO Heat Controller result in system crash.
- Issues with thermostat controlled by Alexa voice assistant.
- Issue with taking a camera snapshot and sending to e-mail.
- Sending empty notification if this notification was previously removed.
- No possibility to use custom icons uploaded in one of the previous firmware versions.
- Tedee lock plugin stops responding after some time and needs rebooting the gateway.
- Cannot manually set a date later than 2021-12-31.
- No pin for setting location via remote access.
- Other minor fixes.