Release Elite Dangerous Market Connector 5.0.1

What Is Elite Dangerous Market Connector?

Elite Dangerous Market Connector ("EDMC") is a third-party application for use with Frontier Developments' game "Elite Dangerous". Its purpose is to facilitate supplying certain game data to, and in some cases retrieving it from, a number of websites and other tools.

To do this it utilises the Journal Files written by the game when played on a PC. It also makes use of Frontier's Companion API ("Frontier's CAPI"), accessible once you've authorised this application.

EDMC has a plugin system which many other developers have made use of to extend its functionality.

Find out more on the EDMC Wiki.

Release 5.0.1

The main reason for this release is to add an 'odyssey' boolean flag to all EDDN messages for the benefit of listeners, e.g.,,,, etc.  Please do update so as to make their lives easier once Odyssey has launched!

  • Translations have been updated again.  Thanks to all the contributors.  See wiki:Translations and Translations welcome for links and discussion if you want to help.
  • Changed the error message "Error: Frontier server is down" to "Error: Frontier CAPI didn't respond" to make it clear this pertains to the CAPI and not the game servers.


In the 5.0.0 changelog we said:

We will **NOT** be using this merely to try and get some laggards to upgrade.

However, from now on there is an exception to this.  After this release any subsequent -beta or -rc versions will be killswitched after their full release is published.

For example, if we put out a 5.0.2-beta1 and 5.0.2-rc1 before the full 5.0.2, then when 5.0.2 was published we would activate all available killswitches for versions 5.0.2-beta1 and 5.0.2-rc1.  In this example 5.0.1 would not be killswitched as part of this policy (but still could be if, e.g. a data corruption bug was found in it).

In general please do not linger on any -beta or -rc release if there has been a subsequent release.  Upgrade to the equivalent full release once it is published.

Plugin Developers

  • Please make the effort to subscribe to GitHub notifications of new EDMarketConnector releases:
  1. Login to GitHub.
  2. Navigate to EDMarketConnector.
  3. Click the 'Watch' (or 'Unwatch' if you previously set up any watches on us).  It's currently (2021-05-13) the left-most button of 3 near the top-right of the page.
  4. Click 'Custom'.
  5. Ensure 'Releases' is selected.
  6. Click 'Apply'.
  7. This way you'll be aware, as early as possible, of any -beta and -rc changelogs and changes that might affect your work.
  • state passed to journal_entry() has a new member Odyssey (note the capital O) which is a boolean indicating if the LoadGame event both has an Odyssey key, and if so, what the value was.  Defaults to False.
  • updated to document the state['Horizons'] flag that has been present in it since version 3.0 of the game.
  • The stations.p and systems.p files that were deprecated in 5.0.0 have now also been removed in git.  As this release is made they will no longer be in the develop, main or stable branches.  If you truly need to find a copy look at the Release/4.2.7 tag, but do read the 5.0.0 changelog for why we stopped using them and what you can change to also not need them.


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