+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+"/usr/share/xml/docbook/schema/dtd/4.5/docbookx.dtd">
+
+<article>
+ <para>
+ Version 1.3.1 is a minor release. It improves support for TeleMega,
+ TeleMetrum v2.0, TeleMini v2.0 and EasyMini.
+ </para>
+ <para>
+ AltOS Firmware Changes
+ <itemizedlist>
+ <listitem>
+ <para>
+ Improve sensor boot code. If sensors fail to self-test, the
+ device will still boot up and check for pad/idle modes. If
+ in idle mode, the device will warn the user with a distinct
+ beep, if in Pad mode, the unit will operate as best it
+ can. Also, the Z-axis accelerometer now uses the factory
+ calibration values instead of re-calibrating on the pad each
+ time. This avoids accidental boost detect when moving the
+ device around while in Pad mode.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Fix antenna-down mode accelerometer configuration. Antenna
+ down mode wasn't working because the accelerometer
+ calibration values were getting re-computed incorrectly in
+ inverted mode.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Improved APRS mode. Now uses compressed position format for
+ smaller data size, improved precision and to include
+ altitude data as well as latitude and longitude. Also added
+ battery and pyro voltage reports in the APRS comment field
+ so you can confirm that the unit is ready for launch.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ <para>
+ AltosUI changes
+ <itemizedlist>
+ <listitem>
+ <para>
+ Display additional TeleMega sensor values in real
+ units. Make all of these values available for
+ plotting. Display TeleMega orientation value in the Ascent
+ and Table tabs.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Support additional TeleMega pyro channels in the Fire
+ Igniter dialog. This lets you do remote testing of all of
+ the channels, rather than just Apogee and Main.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Limit data rate when downloading satellite images from
+ Google to make sure we stay within their limits so that all
+ of the map tiles download successfully.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+</article>