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First release candidate for v5.10

General
-------

- optitrack fixes and gps_datalink protocol updates
  [#1506] (https://github.com/paparazzi/paparazzi/pull/1506)
  [#1563] (https://github.com/paparazzi/paparazzi/pull/1563)
- optitrack/natnet logging
  [#1538] (https://github.com/paparazzi/paparazzi/pull/1538)
- factor out message library and tools into https://github.com/paparazzi/pprzlink
  [#1503] (https://github.com/paparazzi/paparazzi/pull/1513)
- pprzlink: support reading unaligned fiels from messages
  [#1528] (https://github.com/paparazzi/paparazzi/pull/1528)
- pprzlink: update to C API with file descriptor param
  [#1593] (https://github.com/paparazzi/paparazzi/pull/1593)
- flight plans: allow variable declarations in flight plans
  [#1530] (https://github.com/paparazzi/paparazzi/pull/1530)
- flight plans: load modules directly from a flight plan
  [#1540] (https://github.com/paparazzi/paparazzi/pull/1540)
- flight plans: add call_once alias for run without looping
  [#1675] (https://github.com/paparazzi/paparazzi/pull/1675)
- flight plans: simpler geofence safety behaviour definition
  [#1664] (https://github.com/paparazzi/paparazzi/pull/1644)
  [#1802] (https://github.com/paparazzi/paparazzi/pull/1802)
- module build system: improvements to efficiently replace subsystems
  [#1534] (https://github.com/paparazzi/paparazzi/pull/1534)
  [#1590] (https://github.com/paparazzi/paparazzi/pull/1590)
  [#1643] (https://github.com/paparazzi/paparazzi/issues/1643)
  [#1728] (https://github.com/paparazzi/paparazzi/pull/1728)
  [#1760] (https://github.com/paparazzi/paparazzi/pull/1760)
- paparazzi center: make console non-editable and CTRL-C usable to copy text
  [#1546] (https://github.com/paparazzi/paparazzi/pull/1546)
  [#1547] (https://github.com/paparazzi/paparazzi/pull/1547)
- paparazzi center: better save dialog on quit to replace backup dialog at start
  [#1591] (https://github.com/paparazzi/paparazzi/pull/1591)
  [#1640] (https://github.com/paparazzi/paparazzi/pull/1640)
- GCS: add Bebop-like rotorcraft icon
  [#1552] (https://github.com/paparazzi/paparazzi/pull/1552)
- GCS: changed default layout and make it easier to configure
  [#1600] (https://github.com/paparazzi/paparazzi/pull/1600)
  [#1601] (https://github.com/paparazzi/paparazzi/pull/1601)
- update to latest libopencm3
  [#1557] (https://github.com/paparazzi/paparazzi/pull/1557)
- build: print more verbose info on xml loading errors
  [#1570] (https://github.com/paparazzi/paparazzi/pull/1570)
- build: add board specific flags: e.g. use link-time-optimization on smaller boards
  [#1645] (https://github.com/paparazzi/paparazzi/pull/1645)
- OCaml: deal with string deprecated warnings for OCaml >= 4.02
  [#1703] (https://github.com/paparazzi/paparazzi/issues/1703)
- tools: video stream viewer with ROI selection
  [#1708] (https://github.com/paparazzi/paparazzi/pull/1708)
- add a vertical component to the wind vector
  [#1713] (https://github.com/paparazzi/paparazzi/pull/1713)
- math: fix overflow in int32_quat_vmult
  [#1722] (https://github.com/paparazzi/paparazzi/pull/1722)
- math: int32 generic vector math
  [#1758] (https://github.com/paparazzi/paparazzi/pull/1758)
- cockpit: workaround lablgtk 2.18 Debian/Ubuntu bug
  [#1647] (https://github.com/paparazzi/paparazzi/pull/1647)
- GCS: plot shapes on the map
  [#1809] (https://github.com/paparazzi/paparazzi/pull/1809)
- paparazzicenter: experimental Python version
  [#1811] (https://github.com/paparazzi/paparazzi/pull/1811)
- try to prevent speech spam in GCS
  [#1842] (https://github.com/paparazzi/paparazzi/pull/1842)

Airborne
--------

- gps: cleanup utm support and remove GPS_USE_LATLONG flag
  [#1476] (https://github.com/paparazzi/paparazzi/pull/1476)
- gps: support multiple GPS at once with automatic switching
  [#1532] (https://github.com/paparazzi/paparazzi/pull/1532)
- gps: fix GPS mediatek diy compilation
  [#1525] (https://github.com/paparazzi/paparazzi/pull/1525/files)
- gps: revive UBlox via I2C support via gps_ubx_i2c module
  [#1580] (https://github.com/paparazzi/paparazzi/pull/1580)
- sdlog: add SD logging for some meteo sensors on compatible boards
  [#1498] (https://github.com/paparazzi/paparazzi/pull/1498)
  [#1512] (https://github.com/paparazzi/paparazzi/pull/1512)
- datalink: update bluegiga protocol
  [#1507] (https://github.com/paparazzi/paparazzi/pull/1507)
- module: computer vision: orange avoider example
  [#1539] (https://github.com/paparazzi/paparazzi/pull/1539)
- module: refactor XSens drivers and conver them to modules
  [#1541] (https://github.com/paparazzi/paparazzi/pull/1541)
- module: improve optic flow calculation in LukasKanade and add edgeflow
  [#1558] (https://github.com/paparazzi/paparazzi/pull/1558)
  [#1586] (https://github.com/paparazzi/paparazzi/pull/1586)
- replace bool_t with C99 bool from stdbool.h
  [#1577] (https://github.com/paparazzi/paparazzi/pull/1577)
- module: add px4_gimbal for gimal control on Pixhawk
  [#1592] (https://github.com/paparazzi/paparazzi/pull/1592)
- module: add esc32 for ESC32v3 speed controller
  [#1636] (https://github.com/paparazzi/paparazzi/pull/1636)
- module: Support uADC probe from Aeroprobe
  [#1639] (https://github.com/paparazzi/paparazzi/pull/1639)
- module: nav routine for pneumatic launcher takeoff
  [#1655] (https://github.com/paparazzi/paparazzi/pull/1655)
- module: nav routine for skid landing
  [#1669] (https://github.com/paparazzi/paparazzi/pull/1669)
- module: rpm_sensor
  [#1666] (https://github.com/paparazzi/paparazzi/pull/1666)
- module: pose_history
  [#1737] (https://github.com/paparazzi/paparazzi/pull/1737)
- improved vision pipeline with dual video support and async threads
  [#1648] (https://github.com/paparazzi/paparazzi/pull/1648)
  [#1735] (https://github.com/paparazzi/paparazzi/pull/1735)
  [#1764] (https://github.com/paparazzi/paparazzi/pull/1764)
  [#1806] (https://github.com/paparazzi/paparazzi/pull/1806)
- computer vision: optical flow landing module
  [#1611] (https://github.com/paparazzi/paparazzi/pull/1611)
- computer vision: openCV examples
  [#1663] (https://github.com/paparazzi/paparazzi/pull/1663)
  [#1789] (https://github.com/paparazzi/paparazzi/pull/1789)
  [#1798] (https://github.com/paparazzi/paparazzi/pull/1798)
  [#1824] (https://github.com/paparazzi/paparazzi/pull/1824)
- computer vision: image appearance representation using texton distribution
  [#1692] (https://github.com/paparazzi/paparazzi/pull/1692)
- UTM handling upgrades
  [#1629] (https://github.com/paparazzi/paparazzi/pull/1629)
  [#1637] (https://github.com/paparazzi/paparazzi/pull/1637)
  [#1730] (https://github.com/paparazzi/paparazzi/pull/1730)
- datalink: add bluegiga capability to decode direct air-2-air messages
  [#1633] (https://github.com/paparazzi/paparazzi/pull/1633)
- filters: delayed first order filter, second order notch filter
  [#1736] (https://github.com/paparazzi/paparazzi/pull/1736)
  [#1733] (https://github.com/paparazzi/paparazzi/pull/1733)
- convert subsystems to modules
  [#1625] (https://github.com/paparazzi/paparazzi/pull/1625)
  [#1638] (https://github.com/paparazzi/paparazzi/pull/1638)
  [#1740] (https://github.com/paparazzi/paparazzi/pull/1740)
  [#1788] (https://github.com/paparazzi/paparazzi/pull/1788)
- telemetry over intermcu
  [#1821] (https://github.com/paparazzi/paparazzi/pull/1821)
- unified sys_mon and rtos_mon modules
  [#1846] (https://github.com/paparazzi/paparazzi/pull/1846)

Rotorcraft firmware
-------------------

- add velocity commands for guided mode
  [#1502] (https://github.com/paparazzi/paparazzi/pull/1502)
- add traffic info support
  [#1509] (https://github.com/paparazzi/paparazzi/pull/1509)
- refactor INDI stabilization and INDI rate control
  [#1519] (https://github.com/paparazzi/paparazzi/pull/1519)
- add oval navigation routine (like in fixedwing)
  [#1568] (https://github.com/paparazzi/paparazzi/pull/1568)
- improve helicopter support: spinup routines and flight plan mode manual
  [#1606] (https://github.com/paparazzi/paparazzi/pull/1606)
- helicopter: INDI controller
  [#1752] (https://github.com/paparazzi/paparazzi/pull/1752)
- converted PI rate controller to float
  [#1624] (https://github.com/paparazzi/paparazzi/pull/1624)
- better defaults for vertical climb mode to avoid surprises
  [#1627] (https://github.com/paparazzi/paparazzi/issues/1627)
- extension of the guided protocol
  [#1694] (https://github.com/paparazzi/paparazzi/pull/1694)
- guidance for hybrid drones
  [#1769] (https://github.com/paparazzi/paparazzi/pull/1769)

Fixed-wing firmware
-------------------

- split AP and FBW taks when using ChibiOS
  [#1767] (https://github.com/paparazzi/paparazzi/pull/1767)
- Hard-fault recovery wen using ChibiOS
  [#1815] (https://github.com/paparazzi/paparazzi/pull/1815)

Drivers/HW support
------------------

- peripherals: MPUxxxx: configure multiple I2C slaves
  [#1499] (https://github.com/paparazzi/paparazzi/pull/1499)
- peripherals: MPU60x0: fix startup bug
  [#1602] (https://github.com/paparazzi/paparazzi/pull/1602)
- peripherals: support for AK8975 mag in MPU9150
  [#1508] (https://github.com/paparazzi/paparazzi/pull/1508)
- support for Pixhawk board (with split ap/fbw processors)
  [#1551] (https://github.com/paparazzi/paparazzi/pull/1551)
  [#1566] (https://github.com/paparazzi/paparazzi/pull/1566)
  [#1569] (https://github.com/paparazzi/paparazzi/pull/1569)
  [#1587] (https://github.com/paparazzi/paparazzi/pull/1587)
- Parrot Bebop: increase luminosity of front camera
  [#1562] (https://github.com/paparazzi/paparazzi/pull/1562)
- Parrot Bebop: fix for firmware 3.2.0
  [#1745] (https://github.com/paparazzi/paparazzi/pull/1745)
  [#1828] (https://github.com/paparazzi/paparazzi/pull/1828)
- Parrot Bebop: camera upgrade
  [#1750] (https://github.com/paparazzi/paparazzi/pull/1750)
  [#1766] (https://github.com/paparazzi/paparazzi/pull/1766)
  [#1818] (https://github.com/paparazzi/paparazzi/pull/1818)
  [#1825] (https://github.com/paparazzi/paparazzi/pull/1825)
  [#1826] (https://github.com/paparazzi/paparazzi/pull/1826)
  [#1834] (https://github.com/paparazzi/paparazzi/pull/1834)
- Parrot ARDrone2/Bebop: startup fixes
  [#1571] (https://github.com/paparazzi/paparazzi/pull/1571)
  [#1588] (https://github.com/paparazzi/paparazzi/pull/1588)
- support for new OPA (Oversized Paparazzi Autopilot)
  [#1615] (https://github.com/paparazzi/paparazzi/pull/1615)
  [#1657] (https://github.com/paparazzi/paparazzi/pull/1657)
- drop support for classix
  [#1626] (https://github.com/paparazzi/paparazzi/pull/1626)
- CAN support for STM32F4
  [#1670] (https://github.com/paparazzi/paparazzi/pull/1670)
- support for OpenPilot Revolution board (without modem)
  [#1676] (https://github.com/paparazzi/paparazzi/pull/1676)
- support for pure ChibiOS architecture
  [#1699] (https://github.com/paparazzi/paparazzi/pull/1699)
  [#1743] (https://github.com/paparazzi/paparazzi/pull/1743)
  [#1767] (https://github.com/paparazzi/paparazzi/pull/1767)

Simulator
---------

- NPS: simulate airspeed and temperature sensors and get pressure from FDM
  [#1554] (https://github.com/paparazzi/paparazzi/pull/1554)
- NPS: set wind via FlightGear
  [#1565] (https://github.com/paparazzi/paparazzi/pull/1565)
- gaia: fix environment simulator time scale selector
  [#1653] (https://github.com/paparazzi/paparazzi/issues/1653)