Updating to the latest beta of HA gives the following warning
No 'version' key in the manifest file for custom integration 'programmable_thermostat'. This will not be allowed in a future version of Home Assistant. Please report this to the maintainer of 'programmable_thermostat
Updating to the latest beta of HA gives the following warning
No 'version' key in the manifest file for custom integration 'programmable_thermostat'. This will not be allowed in a future version of Home Assistant. Please report this to the maintainer of 'programmable_thermostat
More information can be found here https://www.home-assistant.io/blog/2021/03/03/release-20213/#breaking-changes
edit: changed link