+configuration.</p>
+</li>
+</ol>
+</div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_release_notes">Appendix E: Release Notes</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_9">E.1. Release Notes for Version 1.9.9</h3>
+<div class="paragraph">
+<p>Version 1.9.9</p>
+</div>
+<div class="paragraph">
+<p>This release contains a critical bug fix for a problem
+introduced in version 1.9.8 for TeleMega and EasyMega
+boards. This problem occurs when using the stored
+configuration from 1.9.7 or earlier.</p>
+</div>
+<div class="paragraph">
+<p>If you are running 1.9.8 or are upgrading from 1.9.8 on any
+version of TeleMega or EasyMega, you must reconfigure all pyro
+channels, recalibrate accelerometers, reset the APRS interval,
+adjust the beep tone and reset the pyro time.</p>
+</div>
+<div class="sect3">
+<h4 id="_altos">E.1.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Fix EasyMega and TeleMega upgrade process from 1.9.7 or
+earlier. 1.9.8 introduced larger delay values, which
+required modifying the configuration in-place, and the 1.9.8
+version had a flaw which broke the pyro channel config and
+all of the config values beyond that in memory, including
+APRS interval, IMU accel calibation, beep tone and pyro
+time.</p>
+</li>
+<li>
+<p>Fix TeleMega v5.0 mag sensor driver. This driver was quite
+broken due to developing it in the presence of the magnetic
+beeper on the board. Because of that beeper, the values this
+sensor records are not accurate. Fortunately, they are not
+used for controlling the flight.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui">E.1.2. AltosUI</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Parse TeleMega v5.0 log files. A missing check in the code
+meant that the TeleMega v5.0 log files would cause an error
+when attempting to load them. Logs saved with AltosUI
+1.9.8 were not affected, only the presentation of the data
+was broken.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_8">E.2. Release Notes for Version 1.9.8</h3>
+<div class="paragraph">
+<p>Version 1.9.8</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_2">E.2.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Add support for TeleMega v5.0</p>
+</li>
+<li>
+<p>Extend extra pyro channel times to support delay > 327 seconds</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_2">E.2.2. AltosUI</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Support ARM devices in Linux binary release</p>
+</li>
+<li>
+<p>Add support for TeleMega v5.0</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosdroid">E.2.3. AltosDroid</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Show tilt angle in pad and flight tabs</p>
+</li>
+<li>
+<p>Show altitude as well as height (useful for TeleGPS)</p>
+</li>
+<li>
+<p>Support devices without GPS receivers</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_micropeak_gui">E.2.4. MicroPeak GUI</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Show error dialog if device open fails</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_7">E.3. Release Notes for Version 1.9.7</h3>
+<div class="paragraph">
+<p>Version 1.9.7</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_3">E.3.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Fix TeleGPS logging so that new data are appended to an existing log correctly</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_3">E.3.2. AltosUI</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Support Mac OS X 11 (Big Sur)</p>
+</li>
+<li>
+<p>Support Monitor Idle on Easy Timer</p>
+</li>
+<li>
+<p>Fix TeleMega v4.0 and TeleMetrum v3.0 configuration in Antenna Down mode</p>
+</li>
+<li>
+<p>Show launch sites in Load Maps view</p>
+</li>
+<li>
+<p>Add IMU header names to CSV files</p>
+</li>
+<li>
+<p>Clean up TeleGPS log corruption due to firmware bugs during firmware update</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosdroid_2">E.3.3. AltosDroid</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Support older devices back to Android version 5.1</p>
+</li>
+<li>
+<p>Fix a number of issues that could result in app crashes</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_6">E.4. Release Notes for Version 1.9.6</h3>
+<div class="paragraph">
+<p>Version 1.9.6</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_4">E.4.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Fix EasyTimer bug where it might mis-detect boost (either
+detect it early or not at all) due to small errors in
+accelerometer calibration leading to large accumulated error
+in speed.</p>
+</li>
+<li>
+<p>Adjust self-test of new 9-axis IMU (BMX-160) so that it
+doesn’t think the part has a failure when tested sitting
+horizontally.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_5">E.5. Release Notes for Version 1.9.5</h3>
+<div class="paragraph">
+<p>Version 1.9.5</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_5">E.5.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Add Booster mode for all dual-deploy altimeters. Select
+"Separation & Apogee" mode in AltosUI to fire the 'main'
+channel at first motor burnout and the 'apogee' channel at
+apogee.</p>
+</li>
+<li>
+<p>Improve reliability of stm32l firmware under heavy
+load. This was found using Monitor Idle on TeleMega with all
+flash slots full of data which would occasionally lock up.</p>
+</li>
+<li>
+<p>Fix orientation label in AltosUI for devices with
+radios. This makes the orientation say 'Antenna up' and
+'Antenna Down' for TeleMetrum and TeleMega again.</p>
+</li>
+<li>
+<p>Fix log data for pyro channels which were inhibited (often
+because of a tilt limit). They used to report 'fired' as
+soon as they were inhibited, which was misleading. Now they
+never report as having been fired.</p>
+</li>
+<li>
+<p>Allow Igniter Test to fire each igniter more than once.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_4">E.5.2. AltosUI</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Improve performance of Monitor Idle mode by sending less data for each
+update.</p>
+</li>
+<li>
+<p>Improve Mac OS X install scripts so that they work on
+Catalina. This involves sending the user to get Java from
+the AdoptOpenJDK project which provides a version that works
+with Java applications.</p>
+</li>
+<li>
+<p>Make larger dialogs scrollable for use on smaller screens.</p>
+</li>
+<li>
+<p>Fix troubles re-flashing EasyMega boards running older
+firmware.</p>
+</li>
+<li>
+<p>Add TeleMetrum v3.0 firmware to the Windows
+AltosUI packages.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_4">E.6. Release Notes for Version 1.9.4</h3>
+<div class="paragraph">
+<p>Version 1.9.4</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_6">E.6.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Fixed firmware for TeleDongle v3.0 and TeleBT v4.0. Version 1.9.3 bricked those
+devices requiring them to be opened up to get them working again.</p>
+</li>
+<li>
+<p>Fixed firmware for EasyMini v1.0. Changes in the storage
+code caused it to use significantly more RAM which made the
+interrupt stack smash into other data structures and cause
+the device to panic at startup time.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_5">E.6.2. AltosUI</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Add TeleMetrum v3.0 firmware to the Linux and Mac OSX
+AltosUI packages.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_3">E.7. Release Notes for Version 1.9.3</h3>
+<div class="paragraph">
+<p>Version 1.9.3</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_7">E.7.1. AltOS</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Add APRS offset. Allows multiple APRS transmitters to coordinate when
+transmission occurs to allow them to share a frequency.</p>
+</li>
+<li>
+<p>Fix max log size. Flight computer storage is erased in 64kB chunks. Adjust max
+log size to be a multiple of this size.</p>
+</li>
+<li>
+<p>Check flight erasing more carefully. Handle interrupting erasing in the
+middle.</p>
+</li>
+<li>
+<p>Add EasyTimer support.</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_altosui_telegps_micropeak">E.7.2. AltosUI, TeleGPS, MicroPeak</h4>
+<div class="ulist">
+<ul>
+<li>
+<p>Add configuration support for APRS offset.</p>
+</li>
+<li>
+<p>Adjust flight log sizes to be a multiple of the flight
+computer erase block size.</p>
+</li>
+<li>
+<p>Report barometric pad altitude in Pad tab for TeleMini.</p>
+</li>
+</ul>
+</div>
+<div style="page-break-after: always;"></div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_release_notes_for_version_1_9_1">E.8. Release Notes for Version 1.9.1</h3>
+<div class="paragraph">
+<p>Version 1.9.1</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_8">E.8.1. 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_2">E.8.2. 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">E.9. Release Notes for Version 1.9</h3>
+<div class="paragraph">
+<p>Version 1.9</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_9">E.9.1. 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_3">E.9.2. 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">E.10. Release Notes for Version 1.8.7</h3>
+<div class="paragraph">
+<p>Version 1.8.7</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_10">E.10.1. 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_4">E.10.2. 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">E.11. Release Notes for Version 1.8.6</h3>
+<div class="paragraph">
+<p>Version 1.8.6</p>
+</div>
+<div class="sect3">
+<h4 id="_altos_11">E.11.1. 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">E.11.2. 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">E.11.3. 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">E.12. 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_12">E.12.1. 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">E.12.2. 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">E.13. 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_13">E.13.1. 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">E.14. 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_14">E.14.1. 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">E.14.2. 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">E.15. 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_15">E.15.1. 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">E.15.2. 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">E.16. 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_16">E.16.1. 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">E.16.2. 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">E.17. 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_17">E.17.1. 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">E.17.2. 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">E.18. 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_18">E.18.1. 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">E.18.2. 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">E.19. 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_19">E.19.1. 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">E.19.2. 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">E.20. 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_20">E.20.1. 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">E.20.2. 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">E.21. 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_21">E.21.1. 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">E.21.2. 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">E.21.3. 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">E.22. 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