During November 2025, Utzinger developed BLE Serial functionality for the arduino/library-registry repository, implementing serial-like communication over Bluetooth Low Energy using the Nordic UART Service. This work enabled the use of ble.write as an equivalent to Serial.print, allowing remote debugging and data transfer without physical connections. Utzinger focused on embedded systems and Arduino development, leveraging BLE protocols to expand the library’s capabilities for IoT device integration. The feature laid the groundwork for enhanced telemetry and device management in wireless environments. No bug fixes were addressed during this period, as the primary emphasis was on delivering robust new BLE communication features.