+cannot log data, so the only thing you will lose is the data.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_altus_metrum_hardware_specifications">Appendix E: Altus Metrum Hardware Specifications</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>Here’s the full set of Altus Metrum products, both in
+production and retired.</p>
+</div>
+<table class="tableblock frame-all grid-all stretch">
+<caption class="title">Table 5. Altus Metrum Flight Computer Electronics</caption>
+<colgroup>
+<col style="width: 12.5%;">
+<col style="width: 12.5%;">
+<col style="width: 12.5%;">
+<col style="width: 12.5%;">
+<col style="width: 12.5%;">
+<col style="width: 12.5%;">
+<col style="width: 12.5%;">
+<col style="width: 12.5%;">
+</colgroup>
+<thead>
+<tr>
+<th class="tableblock halign-left valign-top">Device</th>
+<th class="tableblock halign-left valign-top">Barometer</th>
+<th class="tableblock halign-left valign-top">Z-axis accel</th>
+<th class="tableblock halign-left valign-top">GPS</th>
+<th class="tableblock halign-left valign-top">3D sensors</th>
+<th class="tableblock halign-left valign-top">Storage</th>
+<th class="tableblock halign-left valign-top">RF Output</th>
+<th class="tableblock halign-left valign-top">Battery</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock">EasyMini v1.0</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">MS5607 30km (100k')</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">-</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">-</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">-</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">1MB</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">-</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">3.7-12V</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock">EasyMini v2.0</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">MS5607 30km (100k')</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">-</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">-</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">-</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">1MB</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">-</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">3.7-12V</p></td>
+</tr>
+</tbody>
+</table>
+<div style="page-break-after: always;"></div>
+<table class="tableblock frame-all grid-all stretch">
+<caption class="title">Table 6. Altus Metrum Flight Computer Mechanical Components</caption>
+<colgroup>
+<col style="width: 16.6666%;">
+<col style="width: 16.6666%;">
+<col style="width: 16.6666%;">
+<col style="width: 16.6666%;">
+<col style="width: 16.6666%;">
+<col style="width: 16.667%;">
+</colgroup>
+<thead>
+<tr>
+<th class="tableblock halign-left valign-top">Device</th>
+<th class="tableblock halign-left valign-top">Connectors</th>
+<th class="tableblock halign-left valign-top">Screw Terminals</th>
+<th class="tableblock halign-left valign-top">Width</th>
+<th class="tableblock halign-left valign-top">Length</th>
+<th class="tableblock halign-left valign-top">Tube Size</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock">EasyMini</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">Debug USB Battery</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">Apogee pyro Main pyro Battery</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">0.8 inch (2.03cm)</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">1½ inch (3.81cm)</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">24mm coupler</p></td>
+</tr>
+</tbody>
+</table>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_release_notes">Appendix F: Release Notes</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_1">F.1. Release Notes for Version 1.9.1</h3>
+<div class="paragraph">
+<p>Version 1.9.1</p>
+</div>
+<div class="sect3">
+<h4 id="_altos">F.1.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Add support for TeleMetrum v3.0</p>
+</li>
+<li>
+<p>Fix accel cal value when changing EasyMega v2.0 pad orientation</p>
+</li>
+<li>
+<p>Correct EasyMega v2.0 magnetometer data axes</p>
+</li>
+<li>
+<p>Fix EasyMega v2.0 idle monitor display of IMU data</p>
+</li>
+<li>
+<p>Report all sensor failures at power-up time.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps_micropeak">F.1.2. AltosUI, TeleGPS, MicroPeak</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Display error message when attempting to graph unknown format file.</p>
+</li>
+<li>
+<p>Make it possible to disable APRS once enabled.</p>
+</li>
+<li>
+<p>Display some data for point near cursor in map tab.</p>
+</li>
+<li>
+<p>Support upgrading devices from pre-1.8 firmware</p>
+</li>
+<li>
+<p>Wait for Windows to prepare new devices during firmware
+upgrade. This should avoid the “COMxx: open failed” message.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9">F.2. Release Notes for Version 1.9</h3>
+<div class="paragraph">
+<p>Version 1.9</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_2">F.2.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Add support for EasyMega v2.0</p>
+</li>
+<li>
+<p>Replace C library for ARM devices</p>
+</li>
+<li>
+<p>Remove support for 8051-based devices and SDCC compiler</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps_micropeak_2">F.2.2. AltosUI, TeleGPS, MicroPeak</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Select ROM images based on product name when reflashing</p>
+</li>
+<li>
+<p>Fix TeleGPS v2 battery voltage display</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_8_7">F.3. Release Notes for Version 1.8.7</h3>
+<div class="paragraph">
+<p>Version 1.8.7</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_3">F.3.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Include TeleMega v3.0 firmware</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps_micropeak_3">F.3.2. AltosUI, TeleGPS, MicroPeak</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Poll for new devices while Device dialog is displayed</p>
+</li>
+<li>
+<p>Wait for device to re-appear when flashing new firmware</p>
+</li>
+<li>
+<p>Fetch correct TeleBT v4.0 RF calibration values from web
+site when reflashing.</p>
+</li>
+<li>
+<p>Change gyro headings in .csv files from x/y/z to
+roll/pitch/yaw</p>
+</li>
+<li>
+<p>Add documentation about Packet Link mode</p>
+</li>
+<li>
+<p>Add documentation about forcing TeleMini RF parameters to
+known values.</p>
+</li>
+<li>
+<p>Create a proxy server for Google Maps to re-enable map
+images</p>
+</li>
+<li>
+<p>Fix Java version info in all distributed jar files so that
+applications will run with standard Mac OS X Java.</p>
+</li>
+<li>
+<p>Replace JavaApplicationStub for Mac OS X so that
+applications will run with Oracle Java.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_8_6">F.4. Release Notes for Version 1.8.6</h3>
+<div class="paragraph">
+<p>Version 1.8.6</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_4">F.4.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Use maximum of 64 previous tilt values in pyro tilt tests</p>
+</li>
+<li>
+<p>Eliminate 100m height requirement for coast detection</p>
+</li>
+<li>
+<p>Change After Motor pyro check to be >= instead of ==</p>
+</li>
+<li>
+<p>Change Time since Boost to be Time since launch.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps">F.4.2. AltosUI, TeleGPS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Clarify pyro test phrasing</p>
+</li>
+<li>
+<p>Remove ascending/descending from pyro config UI</p>
+</li>
+<li>
+<p>Fix accel calibration in Antenna Down mode</p>
+</li>
+<li>
+<p>Add mag sensor reporting for TeleMega v3 idle monitoring.</p>
+</li>
+<li>
+<p>Fix radio parameter saving at 2400 bps telmetry rate.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_micropeak">F.4.3. MicroPeak</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Report altimeter-recorded maximum height value</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_8_5">F.5. Release Notes for Version 1.8.5</h3>
+<div class="paragraph">
+<p>Version 1.8.5 includes fixes to the ground software support
+for TeleBT v4, along with a few other minor updates.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_5">F.5.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Fix startup beeps that indicate sensor failures.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps_2">F.5.2. AltosUI, TeleGPS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>When updating device firmware, make sure selected firmware
+matches target device.</p>
+</li>
+<li>
+<p>Correct Bluetooth device matching when looking for TeleBT
+devices.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_8_4">F.6. Release Notes for Version 1.8.4</h3>
+<div class="paragraph">
+<p>Version 1.8.4 includes support for EasyMini version 2.0</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_6">F.6.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Support for EasyMini version 2.0 hardware.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_8_3">F.7. Release Notes for Version 1.8.3</h3>
+<div class="paragraph">
+<p>Version 1.8.3 includes support for TeleMega version 3.0 along
+with two important flight computer fixes. This version also
+changes KML export data to make Tripoli Record reporting
+better and some updates to graph presentation and data
+downloading.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_7">F.7.1. AltOS</h4>
+<div class="sect4">
+<h5 id="_altos_new_features">AltOS New Features</h5>
+<div class="ulist">
+<ul>
+<li>
+<p>Support for TeleMega version 3.0 hardware.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect4">
+<h5 id="_altos_bug_fixes">AltOS Bug Fixes</h5>
+<div class="ulist">
+<ul>
+<li>
+<p>Ground testing EasyMega and TeleMega additional pyro
+channels could result in a sticky 'fired' status which would
+prevent these channels from firing on future flights.</p>
+</li>
+<li>
+<p>Corrupted flight log records could prevent future flights
+from capturing log data.</p>
+</li>
+<li>
+<p>Fixed saving of pyro configuration that ended with
+'Descending'.</p>
+</li>
+</ul>
+</div>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_and_telegps_applications">F.7.2. AltosUI and TeleGPS Applications</h4>
+<div class="sect4">
+<h5 id="_altosui_new_features">AltosUI New Features</h5>
+<div class="ulist">
+<ul>
+<li>
+<p>Support for TeleMega version 3.0.</p>
+</li>
+<li>
+<p>Graph lines have improved appearance to make them easier to
+distinguish. Markers may be placed at data points to show
+captured recorded data values.</p>
+</li>
+<li>
+<p>Graphing offers the ability to adjust the smoothing of
+computed speed and acceleration data.</p>
+</li>
+<li>
+<p>The download dialog now offers to graph new flights, checks
+for existing files to avoid overwriting data and reports if
+there are checksum errors in the downloaded data.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect4">
+<h5 id="_altosuitelegps_bug_fixes">AltosUI/TeleGPS Bug Fixes</h5>
+<div class="ulist">
+<ul>
+<li>
+<p>Restore TeleGPS tracking behavior.</p>
+</li>
+<li>
+<p>Display flight computer call sign and serial number in
+Monitor Idle mode instead of ground station values.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect4">
+<h5 id="_altosui_and_telegps_changes">AltosUI and TeleGPS Changes</h5>
+<div class="ulist">
+<ul>
+<li>
+<p>KML export now reports both barometric and GPS altitude data
+to make it more useful for Tripoli record reporting.</p>
+</li>
+<li>
+<p>CSV export now includes TeleMega/EasyMega pyro voltages and
+tilt angle.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_8_2">F.8. Release Notes for Version 1.8.2</h3>
+<div class="paragraph">
+<p>Version 1.8.2 includes support for TeleGPS version 2.0 along
+with accelerometer recalibration support in AltosUI.</p>
+</div>
+<div class="paragraph">
+<p>1.8.2 also contains a couple of minor fixes for AltosUI when
+analyzing saved data files.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_8">F.8.1. AltOS</h4>
+<div class="paragraph">
+<p>AltOS New Features</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Support for TeleGPS version 2.0 hardware.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_and_telegps_applications_2">F.8.2. AltosUI and TeleGPS Applications</h4>
+<div class="paragraph">
+<p>AltosUI and TeleGPS New Features</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Support for TeleGPS version 2.0.</p>
+</li>
+<li>
+<p>Accelerometer re-calibration user interface.</p>
+</li>
+</ul>
+</div>
+<div class="paragraph">
+<p>AltosUI and TeleGPS Bug Fixes</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Prevent some crashes when reading older saved flight data
+for graphing or KML export.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_8_1">F.9. Release Notes for Version 1.8.1</h3>
+<div class="paragraph">
+<p>Version 1.8.1 includes an important bug fix for Apogee Lockout
+operation in all flight computers. Anyone using this option
+must update firmware.</p>
+</div>
+<div class="paragraph">
+<p>This release also contains a change in how flight computers
+with accelerometers deal with speeds around and above Mach
+1. In previous versions, the flight computer would completely
+disregard the barometric sensor above 330m/s (around Mach
+1). Now, the data from the barometric sensor is reduced in
+effect without ever going away entirely. This prevents early
+drogue deployment for flights which spend considerable time
+above Mach 1.</p>
+</div>
+<div class="paragraph">
+<p>1.8.1 also contains a couple of minor fixes for AltosUI when
+analyzing saved data files.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_9">F.9.1. AltOS</h4>
+<div class="paragraph">
+<p>AltOS Bug Fixes</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Handle time value wrapping in Apogee Lockout
+correctly. Without this, apogee lockout would sometimes
+prevent any drogue charge from firing.</p>
+</li>
+<li>
+<p>Change Kalman filter on flight computers with accelerometer
+to continue using the barometric sensor even at high speeds
+to avoid unintentional drogue deployment during
+deceleration.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_and_telegps_applications_3">F.9.2. AltosUI and TeleGPS Applications</h4>
+<div class="paragraph">
+<p>AltosUI New Features</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Add new 'Huge' font size to make text even bigger on high
+resolution monitors.</p>
+</li>
+</ul>
+</div>
+<div class="paragraph">
+<p>AltosUI Bug Fixes</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Prevent some crashes when reading older saved flight data
+for graphing or KML export.</p>
+</li>
+<li>
+<p>Load frequency preference at startup. The loading code was
+broken, so you’d see only the default frequencies.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_8">F.10. Release Notes for Version 1.8</h3>
+<div class="paragraph">
+<p>Version 1.8 includes support for our new TeleBT v4.0 ground
+station, updates for data analysis in our ground station
+software and bug fixes in in the flight software for all our
+boards and ground station interfaces.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_10">F.10.1. AltOS</h4>
+<div class="paragraph">
+<p>AltOS New Features</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Add support for TeleBT v4.0 boards.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_and_telegps_applications_4">F.10.2. AltosUI and TeleGPS Applications</h4>
+<div class="paragraph">
+<p>AltosUI New Features</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Add support for TeleBT v4.0 hardware</p>
+</li>
+<li>
+<p>Rewrite graphing and export functions. This code now handles
+each data series separately so that graphs are drawn
+correctly. Smoothing now uses a filter that looks both
+forward and backwards in time to make computed speed and
+acceleration data more accurate.</p>
+</li>
+</ul>
+</div>
+<div class="paragraph">
+<p>AltosUI Bug Fixes</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Correct axis labeling of magnetic sensor in TeleMega and
+EasyMega. The Y and Z axes were flipped.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_7">F.11. Release Notes for Version 1.7</h3>
+<div class="paragraph">
+<p>Version 1.7 includes support for our new TeleMini v3.0
+flight computer and bug fixes in in the flight software for all our boards
+and ground station interfaces.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_11">F.11.1. AltOS</h4>
+<div class="paragraph">
+<p>AltOS New Features</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Add support for TeleMini v3.0 boards.</p>
+</li>
+</ul>
+</div>
+<div class="paragraph">
+<p>AltOS Fixes</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Fix interrupt priorities on STM32L processors. Run timer
+interrupt at lowest priority so that device interrupts get
+serviced first.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_and_telegps_applications_5">F.11.2. AltosUI and TeleGPS Applications</h4>
+<div class="paragraph">
+<p>AltosUI New Features</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Add support for TeleMini v3.0 hardware</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_6_8">F.12. Release Notes for Version 1.6.8</h3>
+<div class="paragraph">
+<p>Version 1.6.8 fixes a TeleMega and TeleMetrum v2.0 bug where
+the device could stop logging data and transmitting
+telemetry in flight. All TeleMega v1.0, v2.0 and TeleMetrum
+v2.0 users should update their flight firmware.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_12">F.12.1. AltOS</h4>
+<div class="paragraph">
+<p>AltOS fixes:</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Fix STM32L DMA driver to work around STM32L SoC DMA priority
+issue t lock-up in the logging or radio code, either of
+which could stop data logging and telemetry.</p>
+</li>
+<li>
+<p>Avoid having TeleBT battery status values smash telemetry
+packet data by holding a lock during both operations.</p>
+</li>
+<li>
+<p>Don’t start reporting 'flight 0' when the log fills in
+flight.</p>
+</li>
+</ul>
+</div>
+<div class="paragraph">
+<p>AltOS changes:</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Flash LEDS on all products briefly during power up so that
+they can be tested during production.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps_and_altosdroid_applications">F.12.2. AltosUI, TeleGPS and AltosDroid Applications</h4>
+<div class="paragraph">
+<p>AltosUI fixes:</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Re-enable go/no-go entries after they’ve been disabled due
+to lack of data. If telemetry information is delayed when
+the Ui starts up, sometimes important fields would get
+disabled to never re-appear.</p>
+</li>
+<li>
+<p>Deal with ground station failure better during Configure
+Ground Station operation by cleaning up pending operations.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_6_5">F.13. Release Notes for Version 1.6.5</h3>
+<div class="paragraph">
+<p>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.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_13">F.13.1. AltOS</h4>
+<div class="paragraph">
+<p>AltOS fixes:</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>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.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps_and_altosdroid_applications_2">F.13.2. AltosUI, TeleGPS and AltosDroid Applications</h4>
+<div class="paragraph">
+<p>AltosUI fixes:</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Deliver firmward for TeleMega v2.0 and TeleBT v3.0 with
+Windows package.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_6_4">F.14. Release Notes for Version 1.6.4</h3>
+<div class="paragraph">
+<p>Version 1.6.4 fixes a bluetooth communication problem with
+TeleBT v1.0 devices, along with some altosui and altosdroid
+minor nits. It also now ships firmware for some newer devices.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_14">F.14.1. AltOS</h4>
+<div class="paragraph">
+<p>AltOS fixes:</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Fix hardware flow control on TeleBT v1.0. Hardware RTS/CTS
+doesn’t seem to work, switch from using the hardware to
+driving these pins with software.</p>
+</li>
+<li>
+<p>Fix ARM USB drivers to deal with OS restarts. Needed to
+reset all USB-related state when the USB bus is reset. These
+fixes affect all STM32L, STM32F0 and LPC11U14 based devices.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps_and_altosdroid_applications_3">F.14.2. AltosUI, TeleGPS and AltosDroid Applications</h4>
+<div class="paragraph">
+<p>AltosUI, TeleGPS and AltosDroid New Features:</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Automatically switch from meters or feet to kilometers or
+miles for distance units.</p>
+</li>
+<li>
+<p>Add Monitor Idle mode to TeleGPS application.</p>
+</li>
+</ul>
+</div>
+<div class="paragraph">
+<p>AltosUI, TeleGPS and AltosDroid Fixes:</p>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p>Abort map preloading when the preload map dialog is closed.</p>
+</li>
+<li>
+<p>In AltosDroid, Don’t reconnect to last device if the user
+had disconnected it the last time the application was
+active.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_documentation">F.14.3. Documentation</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Mention TeleMega v2.0 in hardware specs table.</p>
+</li>
+<li>
+<p>Document TeleGPS RF output in telegps manual.</p>
+</li>
+</ul>
+</div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_6_3">F.15. Release Notes for Version 1.6.3</h3>
+<div class="paragraph">
+<p>Version 1.6.3 adds idle mode to AltosDroid and has bug fixes