NORA-B26X 3.4.0

Improvements

• Bluetooth: Added AT+UBTDFD to enable filtering of incoming advertisement packages (UCS_DEV_2-1626)
• Bluetooth: Added AT+UBTAES to set advertising interval for extended advertisements (UCS_DEV_2-1644)
• Bluetooth: Return identity address immediately after it is available for privacy peers (UCS_DEV_2-1351)
• Bluetooth: Added non-connectable advertisement support in AT+UBTADL (UCS_DEV_2-1149)
• Bluetooth: Added non-connectable advertisement support in AT+UBTADE (UCS_DEV_2-1658)
• Bluetooth: Added the AT+UBTADL=<max_connections> parameter, which lets you set how many connections can be accepted while running a legacy Bluetooth advertisement. After each connection, the advertisement automatically restarts until the specified limit is reached.
• Bluetooth: (Experimental) Added Channel Sounding reflector role with AT+UBTCSM command (UCS_DEV_2-1400)

Fixed

• Bluetooth: Potential disconnection issue that could occur immediately after a connection when the device was previously bonded (UCS_DEV_2-1593)

Known limitations

• Bluetooth: GATT read/write with authentication fails if bond not pre-established (UCS_DEV_2-851)
• System: Partial escape sequence never timeout. If you, in transparent mode, send a message that contains part of the escape sequence for leaving transparent mode, such as ++, this will not be transmitted to peer until yet another character is sent. (UCS_DEV_2-1490)
• SPS: Some SPS data sent in persistent mode will be lost when remote disconnects. Data sent over a persistent SPS link after the remote device stops acking BLE data until local device receives a BLE disconnect will be lost. The window of lost data will be the BLE supervision timeout if for example the remote device is reset. (UCS_DEV_2-1487)
• Bluetooth: The longest advertisement data for extended advertisement is limited to 226 bytes. (UCS_DEV_2-1471)
• Bluetooth: Only one advertisement can by activated at the same time (UCS_DEV_2-1470)