[DISCUSSION] F1®25: 2026 Season Pack UDP SPECIFICATION

EA_Groguet​ 

Thanks for posting these updates, Groguet! It's great to see the documentation for the new telemetry structures.

Since these files are exactly what hardware developers need, do you happen to know if this information has already been shared with the technical team at Thrustmaster?

Our SF1000 screens are currently blank after the update, so hopefully, with these specs, they can start working on a firmware fix soon. Thanks again for keeping us in the loop and for all your help with this!

Hey everyone, we have updated the UDP telemetry information for Season 8.

This information can be found here: EA SPORTS™ F1®25: 2026 Season Pack UDP SPECIFICATION | EA Forums - 12187347 

Let us know if you have any questions! 

Notes for missing data for 2025 spec:

• F2 '25 teams use IDs 209-219 (same structure as provided in 2026 spec, IDs 465-475, just different IDs in 2025 spec); F1 '26 teams use IDs 220-230 (same structure as provided in 2026 spec, IDs 476-486, just different IDs in 2025 spec). 
• 2025 UDP spec only provides data for 22 cars, so MyTeam '26 and Quick Race with 2026 cars + F1 Generic '26 will not provide all data (missing data for MyTeam or F1 Generic '26 team drivers).

Notes for missing data for 2026 spec: 

• F1 Generic '26 actually uses a different ID and is not specified in the spec document - it uses ID 488. 
• F1 Custom Team '26 (a.k.a. MyTeam 2026 car) also uses a completely different ID and is not specified in the document - it uses ID 65535.

I had some notes regarding the Events packet, but it's not clear. Might be worth adding CHQF to be shown once the "cooldown" timer is active for any non-race session (or just change it to make it be thrown only when the "cooldown" timer begins in any session, to indicate session ending) - at least I haven't seen it working in non-race session for now. It might also be that it is shown only for the 1st place car in a race session, but I need to test a bit more (should be sent to all drivers IMO).
(Though you guys may want to expand the Events packet list with OVTE for "Overtake Enabled" (globally), OVTD for "Overtake Disabled" (globally, possibly with reason (low grip, SC/VSC, Red Flag, etc)) and also something like GRPM for Grip Mode (Low Grip/Normal Grip), since some of the old events aren't useful for 2026 cars (DRSD/DRSE, for example) and other info should probably be prioritized, and I think you might be able to add this in without sacrificing too much work, plus it's easier to show in an information box when Overtake Mode is enabled/disabled for broadcasting, or track is declared as "low grip")

I might have more notes at some point later, but these are the ones I have right now, after some testing and doing some work with the new spec.

To be fair, that is probably as intended - we're still running the F1 25 game technically, so gameYear output as "25" makes sense.

Quick note: When running in F1 26 mode, the UDP still reports as game year the 25, if you send data in F1 2025 format.

And same applies for the F1 2026 format, i.e. the game year is 25, even if you do race in F1 26 mode.

Hey, does anyone have track specified turn system for UDP? Like it would use m_lapDistance to check on where the cars are.

EA_Groguet​ can you pls advise how to change the battery hud on the 26 game? I've been trying to make to make it smaller and move it but only 25 settings coming up. I've tried in GP mode, open lobby and TT. I can't seem to find it.. Pls help. 

I tried FP1 in a driver career mode that i started new and I see that GameMode in Session packet is being reported as 78. This value is not present in the game modes table in the Appendices section. That section might need some updating in the spec doc

EDIT: I see that the new my team uses value 79. Given that the old apxgp story mode is 75, that leaves 76-79 as undocumented. I wonder what 76, 77 are

Not exactly the answer I'm looking for. From my knowledge, the previous UDP specs could handle 22 cars at most. (F2 grid, or MyTeam 2025 and earlier) Now, with MyTeam 2026, we will have 12 Teams total (and total of 24 drivers), and the new 2026 spec is updated to fit that. While various tools will be updated over time with the changes, how will this work with the older specs, since 2025 and earlier are supposed to only have support for 22 cars data? Will we be missing data with older specs for two cars in MyTeam 2026, or are these older specs "updated" to fit the 24 cars grid?

EDIT: Solved the question myself - only 22 cars data is being received, so last 2 cars (whoever may they be in the list) will not send data in a 24-car grid. Also, Team IDs in 2025 spec are a bit different for the 2026 teams (they use IDs 220-230 instead).

The grid will be 11 teams and then your team so 24 on grid