@sajamo
Just to follow on from what Nick has written above. Firstly, thank you for your feedback and our deepest apologies if we have caused confusion. To respond, I think it would initially help to go through the various characters in this drama:
Black Square - developer of the TBM 850 (see post above)
Just Flight - publisher and retailer of the TBM 850 (host of this forum and associated website)
Asobo - developer of MSFS2020 & 2024
Microsoft - publisher of MSFS2020 & 2024 and also owner of the Microsoft MarketPlace
On the 5th September 2025 we (Just Flight) released an update (developed by Black Square) for the TBM850 - you can read all the details of what it includes here: https://support.justflight.com/support/solutions/articles/17000137147-tbm-850-msfs-changelog
This release went as smoothly as any other major update and customers should be enjoying the benefits of it as I type.
The update was for versions of the software purchased direct from Just Flight's website or from the sites of Just Flight's direct retail partners such as Simmarket or Aerosoft.
Among other things, it updated the TBM850 to MSFS2024 compatibility.
see: https://www.justflight.com/articles/msfs-2024-compatibility-and-updates-for-all-black-square-aircraft
The Microsoft MarketPlace for 'in game' purchasing is a completely separate system and, as Nick has outlined above, the versions of any title sold there are specific to the MarketPlace. Software is sent to Microsoft by the developer or publisher and a specific version for PC is 'wrapped' for the MarketPlace. The developer/publisher is then allowed access to test the MarketPlace version and, if approved, Microsoft will release it on their store.
The same process takes place for console (X-Box) - although a product released on PC may not necessarily come out on console at the same time - if ever.
The same process takes place for patches and updates: ie submission / rework / approval / release (with PC and console variants).
There is no fixed timescale for this process - releases are generally pushed out once a week by Microsoft and the new release or update must be wrapped by Microsoft as their time permits.
So, all we can confirm for the moment is that the TBM850 has been updated for 2024 for customers who bought the title from anywhere other than the Microsoft MarketPlace.
When we return to work next week we will see if there have been any issues reported and if there is any clue as to when the MarketPlace version will come out. NB that the MarketPlace will automatically update the software for you - there should be no need to re-download or copy files etc.