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已经支持蓝牙5的extended advertising，版本应该是从1.35开始的：Initial production release of Bluetooth 5 protocol stack (BLE5-Stack) version 1.35.00.33. The BLE5-stack supports the 2 Mbps feature and all Bluetooth 4.0, 4.1 and 4.2 LE core specification features from BLE-Stack v3.0.1
