= Release Notes for Version 1.6.5 include::release-head.adoc[] :doctype: article Version 1.6.5 fixes a TeleMega and TeleMetrum v2.0 bug where the device would often stop logging data and transmitting telemetry in flight. All TeleMega v1.0, v2.0 and TeleMetrum v2.0 users should update their flight firmware. == AltOS AltOS fixes: * Fix STM32L SPI driver to prevent lock-up in the logging or radio code, either of which could stop data logging and telemetry. Found and characterized by Chuck Haskin, who also tested the new firmware before release. == AltosUI, TeleGPS and AltosDroid Applications AltosUI fixes: * Deliver firmward for TeleMega v2.0 and TeleBT v3.0 with Windows package.