Note that this is a public development/alpha/test version that may be unstable and not what you are looking for.

The latest stable version is 2.6.19 which can be downloaded here: Version 2.6.19.

Direct Download for 2.7.11.develop

► Windows - LittleNavmap-win-2.7.11.develop.zip
► macOS - LittleNavmap-macOS-2.7.11.develop.zip
► Linux (64 bit, based on Ubuntu 20.04) - LittleNavmap-linux-20.04-2.7.11.develop.tar.gz
► Linux (64 bit, based on Ubuntu 18.04) - LittleNavmap-linux-18.04-2.7.11.develop.tar.gz

Alternative Download Locations - Look into sub-folder Development.

Box, Mega.nz, OneDrive, DropBox

Version 2.7.11.develop

Notes

This is a public development/alpha release. Not all features are implemented yet for the next
stable 2.8 branches. Translations are incomplete, new help links do not work and user manual is not
adapted.

Some features like MSA, vertical paths or en-route holdings require either X-Plane, the included
AIRAC 1801 database or a Navigraph database newer or equal than AIRAC 2201.

See here for a list of issues to do and a
list of issues done.
Usually more issues are solved than publicly known on Github. This changelog lists all.

Note that all dialogs, windows, menus and buttons are functional. There are no unfinished or fake
buttons/dialogs in the program despite being an alpha release. Tooltips are updated with all new
functions and give help. Help buttons are an exception since the manual is not updated yet.

Please report if something does not work or does not work as expected.

Create a backup of your settings and database folder just in case you'd like to go back to the
stable release. Backup ABarthel in C:\Users\YOURUSERNAME\AppData\Roaming\ABarthel on Windows
and $HOME/.config/ABarthel on Linux and macOS.

Or see Multiple Installations for information how to run the stable and alpha versions in parallel.

Reload the scenery library after updating.

A big thank you to all who reported bugs and issues!

Known Issues

• Enroute holding courses are not correct due to an error in declination calculation.
• Running Little Navmap with autoconnect for P3D, FSX or MSFS for several hours without starting
  the simulator leaks resources. Disable autoconnect or quit the program to avoid this.
  This is mitigated by automatically reducing the connection rate after 30 minutes.

Changes from 2.7.10.develop to 2.7.11.develop

Scenery Library

• Scenery library database is now loaded in background which allows the user to plan a flight while
  loading. Progress dialog is not blocking access to the program now and can be brought into background.
  Loading dialog now gives an option to use or discard a database after loading. Added hint for
  background loading.
• Increased database minor version for parking suffix change. This will raise a notification to
  recommend reloading of the database.
• Better warning message for scenery library mode Use Navigraph for all Features which causes
  issues often.
• Messages for MSFS encrypted airports are now delivered as warnings instead of errors.
• Now ignoring waypoints with empty ICAO region code and invalid type as they appear in some MSFS
  add-on sceneries. This fixes the exception NOT NULL constraint failed: tmp_waypoint.region ...
  when loading. #910
• Now allowing BGL files from missions to catch respective airports when loading MSFS.
• Changed handling for MSFS file Content.xml for SU10 and fixed crash when reading new file
  layout. Priorities for known base folders are now forced to lowest values to ensure the correct
  loading order. Other folders are loaded without any special order if not set in Content.xml.
• Community path for MSFS is now optional for MSFS detection but will throw an error on loading.
• Fixed database connection leak when compiling X-Plane scenery library.
• Reduced logging for invalid MSFS BGL files.

Map

• Added turn prediction line for user aircraft also having tick marks for half and one NM distance.
  Enabled by default in menu View -> Show Turn Flight Path.
• Added option to disable magenta highlight for active in options on page Map Display Flight Plan
  in checkbox Highlight active leg. #785
• Added optional label Distance and Bearing from User for AI aircraft. This can be enabled in options
  on page Map Display Labels, branch AI, Multiplayer and Online Client Aircraft in line
  Distance and Bearing from User. #708
• Added options for measurement lines thickness, color and font size. These can be changed in options
  on page Map Display User -> Distance measurements.
• Added two sliders in airspace toolbar button dropdown menu for minimum and maximum altitude in
  500 ft steps to show overlapping airspaces. #612
• Changed wind altitude levels in toolbar button to use a slider instead of fixed altitude levels.
• Improved highlight marks shown when selecting a flight plan leg or search result. Added size option for
  highlight marks in options on page Map Display User -> Circle Size.
• Highlight marks from table selections are always shown on top of other map features now.
• Now placing userpoint labels depending on type to avoid overlap with underlying navaids or
  airports.
• Fixed issue where airspaces with unknown maximum altitude were not shown using altitude restriction.
• Made writing and reading of map theme keys more error tolerant. Now writing error message to log
  and throwing an exception if reading from or writing to file fails.
• Corrected map display to hide flight plan airports if flight plan is disabled on map.
• Improvements to status bar label showing visible map objects. Added flight plan, aircraft track
  and wind barbs.
• Fixed issues with ghost tooltips on not visible parking spots with certain map display
  configurations (flight plan on/off).
• Fixed issue where wind pointer on map was not visible on disabled AI display.
• Corrected cursor behavior and shape when zoomed too far out on map.
• Corrected disappearing label for short measurement lines.
• Increased maximum limit for range rings.

Flight Plan and Elevation Profile

• Added footer line in flight plan table which shows distance, time and fuel for selected flight
  plan entries. Flight plan table options (menu Tools -> Flight Plan Table Options -> Flight Plan Table Footer -> Selected Flight Plan Legs) now allows to disable selection and error footer
  lines in flight plan table. #892
• Changed flight plan calculation to a normal non-blocking dialog window also to avoid
  the short popping up on start. Note that these non-blocking dialog windows can be put behind the
  main window and show up in the Windows or other task lists.
• Highlight of active in flight plan table can be disabled in options on page Flight Plan. #785
• Removed forced assignment of runways if no parking is set for departure. An airport can now be
  used as a departure point. Improved parking selection dialog.
• Simulator connection modules (SimConnect and Little Xpconnect) changed to fetch fractional
  seconds from simulator. #907
• Format of the saved track has changed (file little_navmap.track). This version of Little Navmap
  can load the old track format but not vice versa.
• Added safe altitude display in flight plan table (orange line in elevation profile). Can be
  enabled in menu Tools -> Flight Plan Table Options.
• Changed reading of GLOBE data files to get more accuracy and buffer in elevation data.
• Added options to display vertical path angle and speed to reach the next waypoint at the calculated
  altitude. Can be shown in elevation profile (Tools -> Elevation Profile Display Options) as
  aircraft label and in aircraft progress tab (Tools -> Aircraft Progress Display Options). Made
  aircraft labels in elevation profile optional.
• Destination runway for flight plan top label now also extracted from STAR if no approach is used.
• ILS display in flight plan table and map is now forced for localizers in approaches like LOWI LOC-W.
• Improved scrolling and zooming with mousewheel in elevation profile.

Flight Plan Export

• Added reading support for Garmin GFP flight plan files. These are text files containing the
  flight plan after the prefix FPN/RI:.
• Now showing warning dialog on wrong flight plan export options when exporting flight plan.
• File -> Export Options are now unchecked for this update since these often cause issues.
• Changed GPX loading and saving to use millisecond accuracy. Fixed timezone issues when loading and
  saving GPX. GPX now allows both millisecond and second ISO date. #907
• Fixed issue with X-Plane FMS flight plan export where wrong airport designator for custom / add-on
  only airports.
• Fix for X-Plane FMS export using long airport ids.
• Fixed issue where using export options resulted in missing waypoint names for pseudo waypoints in
  X-Plane FMS export. #902
• Fix for X-Plane FMS export using long airport ids.
• Fixed issue where altitude was missing in some exported flight plan legs when selecting one of the
  export options.
• Corrected PMS50 export path to Community\pms50-instrument-gtn750\fpl\gtn750
• Added separate export option for PMDG MSFS aircraft.
• Added suffix to airport parking. This is only used by MSFS but still MSFS cannot load its own plans
  saved with a suffix.
• Added support for MSFS parking suffix to allow reloading flight plans. Example EDDG, 18A to 18E.
  MSFS still cannot load parking positions with suffix. Not even its own ones.
• Changes to Flightgear plan import and export: Waypoints with missing coordinates can now be
  loaded. Waypoints marked <type>basic</type> can now be exported and loaded. Thanks a lot to
  colingeniet at Github for the fix
• Fixed import and export to and from SimBrief to use correct notation for SID, STAR and transitions.

Flight plan route description

• Flight plan route description window is now non-blocking and allows to continue working with the
  main window while opened. Note that the non-blocking dialog window can be put behind the main window
  and shows up in the Windows or other task lists.
• Changes done by clicking Create Flight Plan can now be undone in the tab Flight Plan.
• Removed IFR/VFR selection box. The flight plan type is now taken from the tab Flight Plan.
• Update the description string manually by clicking Load from Flight Plan after changing flight
  plan on the map or by other means.
• Added separate help area in route description window and removed tooltips. Open or close the help
  area with the blue help button.
• Removed Read Route Description button in route description window and replaced its functionality with
  a delayed automatic update. Results update while typing.
• Added new options to route string dialog: Write STAR and transition reversed (format TRANS.STAR or
  TRANS STAR) and Write SID/STAR and transition space separated.
• Now reading space separated notation SID TRANS, SID.TRANS as well as STAR TRANS, TRANS STAR,
  STAR.TRANS and TRANS.STAR in route description.

Online Flying #761 and #754

• Completely reworked removal of duplicate aircraft (shadow aircraft) coming from simulator and
  online network. Registration/callsign match function is now replaced by a spatial match. There is
  no need to have matching registration/callsign values now. This applies to the user aircraft as
  well as multiplayer aircraft.
• Added note for simulator and online shadow aircraft in tooltip and information window.
• Corrected map context menu and display of tooltip/information when using above aircraft. #761 and #552
• New option in configuration file to disable shadow aircraft: [Options], OnlineNetworkDisableShadow.
• Added dark red online aircraft icons by type for simulator shadow aircraft. Now also showing
  online helicopter or jet icon for online aircraft shadows.
• Now showing AI and shadow aircraft labels earlier when zooming into map.
• Fixed display of online, online shadow and AI aircraft. Disabling AI and online now hides the
  correct aircraft. Corrected tooltip for online and AI too.

User Interface

• Fixed issue where tooltips disappeared after a short time when being connected.
• Swapped Shift+F11 and F11 functions. Fullscreen is now F11 since this is a common shortcut for
  most applications.
• Added warning message if using scenery library with not matching simulator in connect dialog.
• Added save button to aircraft performance merge and edit dialogs.
• Added indicator for transitions (T) in procedure search tab for SID, STAR and approaches.
  Number of transitions is shown in remarks column.
• All actions for None and All in toolbar button dropdown menus can now toggle between states
  none, all and selected state. Click All a second time to revert to the previous selection. #762
• Now creating More ... overflow menu in for userpoint categories if userpoint category menu gets
  too large.
• Statistics and route calc windows are now raised or opened for each toolbar click instead of
  toggled.
• Fixed crash when entering single quote in airport or navaid ident search field. #901
• Removed Delete Aircraft Trail function from toolbar to avoid accidental deletion. The function
  can be accessed by shortcut Alt+Shift+T or in menu Map.
• Split delete options for user feature types like range rings or measurement lines for all feature
  types in menu Map and Reset all for a new Flight.
• Now decreasing connection rate for long running sessions using autoconnect to avoid loss of
  internal SimConnect resources. After 30 minutes, an attempt is made to connect every 30 seconds, and
  after one hour, every minute. Workaround for #891.
• Option Center aircraft and next flight plan waypoint is now disabled on first start since it
  causes too much confusion for first time users.
• Removed RNP channel number from flight plan table and other displays where it does not matter.
• Changed symbol for nautical miles to correct official NM.
• Selected user interface font now applies to menus as well.

Command Line #431

Start program with the help option (-h) from a terminal to see available command line options.

• Added command line option -f or --flight-plan to load a flight plan file using one of the
  supported formats (.lnmpln, .pln, .fmc and more).
• New command line option to load and parse a flight plan route description (-d or --flight-plan-descr).
• Aircraft performance file can now be loaded from command line with option -a or --aircraft-perf.
• Added option -p or --settings-path to change full path to settings and databases using an
  absolute folder or one relative to the installation folder. This allows to put all settings and
  databases on another drive.

Logbook

• Added simulator and real travel time to logbook search result table.
• Added footer line to logbook search which shows summed up values for travel times and distances
  for selected logbook entries.
• Now enabling search options which might be hidden after importing X-Plane logbook or using
  Show in Search.
• Fixed show in search function for logbook entries which used the wrong filter. #592
• Adapted logbook statistics dialog to use the same behavior as flight plan calculation window.

Weather

• Added more altitude pressure equivalent layers for GRIB winds aloft download for more accuracy at
  lower levels: 850 mbar (rounded to 4000 ft), 925 mbar (rounded to 2000 ft).
• Fixed weather downloader to show error message on empty METAR file for pages not returning a 404 error.