+= Release Notes for Version 0.9
+:toc!:
+:doctype: article
+
+ Version 0.9 adds a few new firmware features and accompanying
+ AltosUI changes, along with new hardware support.
+
+ == AltOS
+
+ * Support for TeleMetrum v1.1 hardware. Sources for the flash
+ memory part used in v1.0 dried up, so v1.1 uses a different
+ part which required a new driver and support for explicit
+ flight log erasing.
+
+ * Multiple flight log support. This stores more than one
+ flight log in the on-board flash memory. It also requires
+ the user to explicitly erase flights so that you won't lose
+ flight logs just because you fly the same board twice in one
+ day.
+
+ * Telemetry support for devices with serial number >=
+ 256. Previous versions used a telemetry packet format that
+ provided only 8 bits for the device serial number. This
+ change requires that both ends of the telemetry link be
+ running the 0.9 firmware or they will not communicate.
+
+ == AltosUI Application
+
+ * Support for telemetry format changes.
+
+ * Support for multiple flight logs.