0.12.0

• core
  • UUID: implement encoding methods MarshalBinary, UnmarshalBinary, AppendBinary, MarshalText, UnmarshalText, and AppendText. Also enhance testing and improve performance. ParseUUID and UUID.String now use these methods. UnmarshalText supports 128, 32, and 16-bit UUIDs.
  • MAC: implement encoding interfaces (TextMarshaler, BinaryMarshaler, TextAppender, BinaryAppender) for efficient encoding and use with packages like encoding/json and encoding/xml. String method performance improved.
  • fix: correctly handle slice of connection handles for notification updates.
• hci
  • fix: handle l2cap connection param req updates with invalid length data.
• linux
  • Fix: Adapter.connectHandler is now called after Advertisement.Start. D-Bus signals added to handle connect/disconnect events when peripheral is advertising (#369).
  • Fix: ensure connectHandler is invoked on initial device connection.
  • Advertising: Add alias update on advertising.
  • Advertising: Extend property handling for D-Bus signals.
  • Adapter: check powered state before connecting.
  • Adapter: call startDiscovery asynchronously as it can block if adapter is powered off.
  • Adapter: close scan-in-progress channel if adapter is powered off during scan.
  • Adapter: handle adapter power state to return an error if the adapter is powered off while connecting.
  • Adapter: handle adapter power state to return an error if the adapter is powered off while scanning.
• windows
  • Fix: Notify/Indicate characteristics detection.
• modules
  • Update to latest soypat/cyw43439 package.
  • Update to use cyw43439 package with BLE read length fix.
• docs
  • Update inline documentation for Linux Adapter.SetConnectHandler.
  • Update README usage example for Linux connectHandler.
  • Correct README example for Linux advertising.
  • Add info on flashing the Microbit v2.
• examples
  • Add resource cleanup in Linux advertising example.
  • Add connectHandler to Linux advertisement example.