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v8.4.51 - Add Git commit message to training metadata (#24505)

🌟 Summary

Ultralytics v8.4.51 focuses mainly on better training traceability and clearer deployment/docs updates 📦📝, with the most important change adding the Git commit message to training metadata so models are easier to track, reproduce, and audit.

📊 Key Changes

• Training metadata now includes the Git commit message 🧾
  The headline update from @​glenn-jocher adds the current commit subject into:

  • saved checkpoints as git.message
  • Platform training environment metadata as gitCommitMessage
  • Git repository utilities via GitRepo.message

• More robust Git metadata handling 🔧
  Git repository parsing was improved to better read metadata from Git internals, including shared/worktree-style layouts. This helps Ultralytics capture version information more reliably during training.

• Major augmentation pipeline refactor 🛠️
  A substantial internal refactor by @​Laughing-q introduced a more unified transform system:

  • BaseTransform now standardizes how image, instance, and semantic-mask transforms are applied
  • augmentations like Mosaic, MixUp, CutMix, CopyPaste, RandomPerspective, RandomFlip, and LetterBox were reorganized around this shared structure

• OpenVINO docs updated with YOLO26 benchmarks 🚀
  The OpenVINO documentation now highlights YOLO26 benchmark results instead of older YOLO11 benchmarks, with refreshed performance data across newer Intel CPUs, GPUs, and NPUs.

• DeepX export documentation expanded 📤
  DeepX was added to the export formats table, with supported export arguments and output folder behavior documented more clearly.

• RT-DETR inference tuning guidance added ⚡
  Docs now explain that users can reduce query count for faster RT-DETR inference, helping users trade a bit of accuracy for lower latency when needed.

• YOLOE export behavior clarified ⚠️
  The docs now clearly warn that exported YOLOE models are static: once exported, prompt-based class configuration is baked into the model and cannot be changed later.

• Ultralytics Platform GPU docs refreshed ☁️
  Platform docs now reflect:

  • more available GPU types
  • new B300 GPU availability
  • updated plan access details
  • revised GPU pricing

• Test/CI compatibility improvement for Axelera export 🧪
  Axelera export tests are now limited to supported PyTorch versions, reducing false failures in CI.

• General documentation cleanup 📚
  Smaller updates include a fixed DeepX link, README simplification, removal of old Weglot docs overrides, and wording/casing polish across docs.

🎯 Purpose & Impact

• Easier experiment tracking and reproducibility 🔍
  Adding the Git commit message makes it much easier to tell what exact code change produced a trained model, especially when many experiments are run close together.

• Better debugging and collaboration 🤝
  Teams using local training or the Ultralytics Platform can now connect checkpoints and cloud runs to a human-readable commit description, not just a hash.

... (truncated)

• 14ea57b Add Git commit message to training metadata (#24505)
• ae09739 Update Platform GPU docs for B300 (#24506)
• d3d3116 Update OpenVINO benchmarks with YOLO26 (#24285)
• c8de052 docs: normalize casing for PyTorch / NumPy / Matplotlib in prose (#24499)
• 39d1d03 Warn that exported YOLOE models are static (#24496)
• ea872d4 docs: add RT-DETR query count tip (#24466)
• 0597497 Refactor BaseTransform and unify augmentation pipeline (#24434)
• aae4c3b Add DeepX to export formats table and optimize arg docs (#24488)
• 96d1d17 Scope Axelera export to 2.8.0<=torch<2.12.0 in Tests CI (#24487)
• a2d3970 Clean up integrations section in README (#24486)
• Additional commits viewable in compare view

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