What's Changed
* Support new Z2M OTA index metadata by puddly in https://github.com/zigpy/zigpy/pull/1568
* Open serial ports exclusively by default by puddly in https://github.com/zigpy/zigpy/pull/1574
* Primary entity registration by puddly in https://github.com/zigpy/zigpy/pull/1576
* Application level retries by puddly in https://github.com/zigpy/zigpy/pull/1549
**Full Changelog**: https://github.com/zigpy/zigpy/compare/0.77.1...0.78.0