# New Release: Ultralytics v8.3.225

**URL:** <https://community.ultralytics.com/t/new-release-ultralytics-v8-3-225/1617>\
**Category:** Discussion\
**Tags:** ultralytics-official, releases, announcements\
**Created:** [November 4, 2025, 1:16pm UTC](https://community.ultralytics.com/t/new-release-ultralytics-v8-3-225/1617 "2025-11-04T13:16:56Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![glenn-jocher](https://sea1.discourse-cdn.com/flex001/user_avatar/community.ultralytics.com/glenn-jocher/32/83_2.png) [@glenn-jocher](https://community.ultralytics.com/u/glenn-jocher)\
**Post date:** [November 4, 2025, 1:16pm UTC](https://community.ultralytics.com/t/new-release-ultralytics-v8-3-225/1617/1 "2025-11-04T13:16:56Z")

</div>

# Ultralytics v8.3.225 is out 🚀

Summary  
Ultralytics 8.3.225 introduces first-class KITTI dataset support for YOLO11, safer checkpoint loading for SAM/SAM2, a breaking change for SAM-2 object IDs (now 0-based), and more reliable Jetson JetPack 4 Docker builds, alongside polished docs and type hints. If you’re starting with YOLO today, YOLO11 is our recommended default for all use cases.

New Features

- KITTI dataset support for YOLO11 🎉  
Train and evaluate out-of-the-box with a ready-to-use `kitti.yaml`, docs, and examples. Explore the new [KITTI dataset documentation](https://docs.ultralytics.com/datasets/detect/kitti/) and review the [kitti.yaml configuration](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/cfg/datasets/kitti.yaml).

Improvements

- Safer checkpoint loading for SAM/SAM2 🛡  
A unified `torch_load` helper improves cross-version PyTorch compatibility and avoids `pickle` pitfalls.
- Jetson JetPack 4 Docker build reliability 🔧  
Builds are now more reproducible by sourcing ONNX Runtime/TensorRT wheels from Ultralytics-hosted assets.
- Docs and developer experience polish 📚  
Cleaned code blocks for ExecuTorch docs, stronger type hints across dataloaders and utilities, and CI stability improvements.

Breaking Changes

- SAM-2 interactive predictor uses 0-based object IDs 🔁  
This standardizes behavior with Python conventions and helps prevent off-by-one errors. If your scripts assumed IDs starting at 1, please update them to start at 0.

Why this matters

- Faster starts on autonomous driving research 🚗  
KITTI support lets you get training and benchmarking with YOLO11 in minutes.
- More reliable model loading across environments 🔄  
Centralized checkpoint handling reduces surprises between PyTorch versions.
- Reproducible hardware builds 🧪  
Jetson images are less likely to break due to changing external assets.
- Smoother onboarding ✨  
Clearer docs and typing help IDEs and new contributors.

Get started on KITTI with YOLO11

```bash
pip install -U ultralytics

```

```bash
yolo detect train data=kitti.yaml model=yolo11n.pt epochs=100 imgsz=640

```

```python
from ultralytics import YOLO

model = YOLO("yolo11n.pt")
model.train(data="kitti.yaml", epochs=100, imgsz=640)

```

Merged Pull Requests

- PR #22576: [Fix 429 forum links in Dockerfile-jetson-jetpack4](https://github.com/ultralytics/ultralytics/pull/22576) by [@glenn-jocher](https://github.com/glenn-jocher)
- PR #22577: [Use torch\_load patch for weights\_only cases](https://github.com/ultralytics/ultralytics/pull/22577) by [@Laughing-q](https://github.com/Laughing-q)
- PR #22581: [Fix indentation in integrations/executorch.md examples](https://github.com/ultralytics/ultralytics/pull/22581) by [@Laughing-q](https://github.com/Laughing-q)
- PR #22582: [Remove redundant Executorch test](https://github.com/ultralytics/ultralytics/pull/22582) by [@Laughing-q](https://github.com/Laughing-q)
- PR #22580: [Add Python type hints for dataloader functions](https://github.com/ultralytics/ultralytics/pull/22580) by [@Laughing-q](https://github.com/Laughing-q)
- PR #22529: [Fix object ID indexing with SAM2DynamicInteractivePredictor](https://github.com/ultralytics/ultralytics/pull/22529) by [@Y-T-G](https://github.com/Y-T-G)
- PR #22539: [Add KITTI dataset (ultralytics 8.3.225)](https://github.com/ultralytics/ultralytics/pull/22539) by [@RizwanMunawar](https://github.com/RizwanMunawar)

Release and changelog

- Read the detailed notes on the [Ultralytics v8.3.225 release page](https://github.com/ultralytics/ultralytics/releases/tag/v8.3.225).
- Review every change in the [full v8.3.224 → v8.3.225 comparison](https://github.com/ultralytics/ultralytics/compare/v8.3.224...v8.3.225).

We’d love your feedback  
Give the release a try, especially the new KITTI support and SAM/SAM2 improvements, and let us know how it goes in Discussions or by opening an issue. Your input helps the YOLO community and Ultralytics team keep improving.