2026.4.0-alpha.1

⭐ Added Assetto Corsa Evo

• DRE now supports Assetto Corsa Evo in early access.
• Current support is based on the data AC Evo exposes today. Physics and basic performance data are available, but opponent/session data is still limited.
• A full UDP connection is not available yet, which means DRE cannot currently receive the richer live race feed normally used for complete race engineering features.
• Not yet fully supported:
  • detailed opponent tracking and relative race awareness
  • complete timing, standings, and race-control events
  • full fuel, pit, strategy, and stint calculations
  • advanced spotter/race-engineer calls that depend on live multiplayer/session data
• Future work depends on further AC Evo telemetry/API/UDP support from the simulator.
• Enable it from Settings -> Sim Connection -> Simulators.

⭐ Custom League Classes

• Added a new Custom Classes tab in Session View so you can import class setups, inspect league configs, and manage class assignments directly in DRE.
• Assign drivers by simulator class, car number, Customer ID, or Team ID, then use Apply Now to activate the config for the current league or server.
• Custom class names and colors can carry into the live roster and Analytics, so multi-class fields are easier to read the way your league actually races.
• Essentials live editing stays protected. Users without access can still inspect imported data in read-only mode.

⭐ Preferred GPU selection for Local Neural Recognition

• Added a Preferred Local AI GPU setting for Local Neural Recognition so multi-GPU PCs can choose which GPU DRE should use for local speech recognition and future AI work.
• You can leave it on Default GPU for the normal Neural Recognition behavior, or pick a specific internal or discrete GPU when DRE detects more than one physical GPU.
• The setting only appears when Local recognition is selected, and your runtime order includes CUDA or Vulkan.

🔄 Safer Local Neural Recognition GPU fallback

• Improved Local Neural Recognition startup so DRE resets the selected GPU back to Default GPU if that GPU cannot be used.
• DRE will not silently use a different selected GPU when the chosen adapter cannot be matched safely.
• Added clearer logs for the selected GPU, attempted runtime, resolved device, skip reason, and reset reason.

⭐ Mute Windows mic when DRE speaks

• Adds an opt-in Sound/Input setting that temporarily mutes the default Windows communications microphone while DRE or the spotter is speaking
• Restores the microphone shortly after DRE finishes speaking, with safety checks so DRE only restores a mic it muted itself
• Useful for open-mic Discord, iRacing voice chat, OBS, and other apps using the Windows communications input device
• Disabled by default; enable it in Sound -> Input -> Mute Windows mic when DRE speaks

⭐ Learn and adapt to Incident penalty thresholds

• Hear penalty incident thresholds for drive-throughs and disqualification.
• You hear these upon entering the race session when gridding, and when approaching the individual limits:
  • Initial Drive-Through
  • Subsequent Drive-Throughs (available with Performance tier or higher)
  • Disqualification (driven by the existing Disqualifications previously known as Incidents High)

🔄 Renamed Alert Incident Threshold

• Alert Incident Threshold now goes under the name Incident Limit Offset to better describe its offsetting purposes.
• It now affects not only the Incident Limit before Disqualification, but also the Incident Limit before Drive-Throughs.

🔄 Renamed Incidents High

• Incidents High is now called Disqualifications to better describe its meaning.

🔄 Neural Recognition is now fine-tuned for sim racing

• The local Neural Recognition models are now fine-tuned for sim racing scenarios, enhancing performance and accuracy.

• Some examples on how DRE now better understands and recognizes terms:
  • "stent" -> "stint"
  • "cap" -> "gap"
  • "showtimeing" -> "show timing"
  • "labs left" -> "laps left"
• Numbers!
  • Small model makes 46% fewer recognition mistakes.
  • Medium model makes 62% fewer recognition mistakes.
  • What you say vs what’s transcribed correctly now occurs more than double as many times for small, triple for medium.
• Availablity
  • Small and Medium model will be available going forward. Large local model has been deprecated due to size/quality ratio not improving enough and small and medium models out-performing the large model.
  • Only Multi-Lingual models are now available, as they have shown to be as good, or even better than English-only model. Fear not if you see a Multi-Lingual model downloading.
  • Note ⚠️️ Improvements are only for the local models.
    • Cloud model improvements are pushed back to after feedback and iteration on these new local models.
• Thanks to contributors of voice data, DRE is now much better at not only understanding single terms better, but overall sentence structures relating to sim racing.

🔄 Optimized Neural Recognition

• DRE is now better at catching valid race requests that previously risked being rejected or misunderstood.
• The improvement is most noticeable on borderline phrases: weather questions, fuel page requests, pit fuel instructions, and incident limit questions.
• Valid DRE request recognition improved by about 4% in validation, while protection against unrelated speech stayed just as strong.
• Voice command handling is also leaner, saving roughly 150-200 ms by avoiding an extra recognition step before matching the command.

Based on Stable v2026.2.0 – see full stable changelog