# New Release: Ultralytics v8.3.152

**URL:** <https://community.ultralytics.com/t/new-release-ultralytics-v8-3-152/1127>\
**Category:** Discussion\
**Tags:** ultralytics-official, releases, announcements\
**Created:** [June 8, 2025, 1:10pm UTC](https://community.ultralytics.com/t/new-release-ultralytics-v8-3-152/1127 "2025-06-08T13:10:43Z")\
**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:** [June 8, 2025, 1:10pm UTC](https://community.ultralytics.com/t/new-release-ultralytics-v8-3-152/1127/1 "2025-06-08T13:10:43Z")

</div>

# 🚀 Ultralytics v8.3.152 Release Announcement

Hello YOLO community!

We’re excited to announce the release of **Ultralytics v8.3.152** , packed with enhancements focusing on segmentation accuracy, smarter memory use, smoother model loading, and even more user-friendly documentation. This update brings improvements that benefit everyone — from researchers and developers to first-time YOLO users!

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## 🌟 Quick Summary

- **Sharper segmentation masks & improved results**
- **Automatic VRAM management for smoother training**
- **Faster, clearer confusion matrix plots**
- **Better docs with new YouTube tutorial content**
- **More reliable checkpoint/model loading**
- **Enhanced custom classification augmentation documentation**

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## 🆕 New Features & Major Improvements

### Enhanced Segmentation Mask Precision

- **Optimized resizing logic** ensures segmentation masks align more accurately with original images for precise object boundaries.
- Thanks to [@horsto](https://github.com/horsto) ([PR #20957](https://github.com/ultralytics/ultralytics/pull/20957)).

### Smarter Model Loading

- **Improved task detection** when loading checkpoints means your models retain the correct configuration, reducing confusion and setup errors.
- Thanks to [@Y-T-G](https://github.com/Y-T-G) ([PR #20966](https://github.com/ultralytics/ultralytics/pull/20966)).

### Automatic GPU Memory Management

- The framework **automatically frees GPU memory** before validation if VRAM usage is high, minimizing accidental out-of-memory errors—especially helpful for those with limited hardware.
- Thanks to [@RaahimSiddiqi](https://github.com/RaahimSiddiqi) ([PR #20960](https://github.com/ultralytics/ultralytics/pull/20960)).

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## 📈 Improvements

### Faster & Clearer Confusion Matrix

- **Confusion matrix calculations are up to 30% faster** , letting you evaluate results even more quickly.
- **Improved readability** with higher-contrast text, so your evaluation visuals are easier to interpret.
- Credits: [@dianyo](https://github.com/dianyo) ([PR #20972](https://github.com/ultralytics/ultralytics/pull/20972)), [@mihlefeld](https://github.com/mihlefeld) ([PR #20955](https://github.com/ultralytics/ultralytics/pull/20955)).

### Better Docs, More Learning

- **New and updated YouTube tutorials** embedded in the docs, covering topics like Objects365 and workout monitoring, so you can learn by example.
- Guide updates by [@RizwanMunawar](https://github.com/RizwanMunawar) ([PR #20965](https://github.com/ultralytics/ultralytics/pull/20965)).

### Custom Classification Augmentations

- **New documentation and examples** for customizing augmentations in classification tasks, so you can adapt workflows to your datasets.
- Thanks to [@Laughing-q](https://github.com/Laughing-q) ([PR #20949](https://github.com/ultralytics/ultralytics/pull/20949)).

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## 🛠 Bug Fixes

- Several core logic improvements make YOLO11 training and inference more robust, minimizing interruptions and maximizing reliability.

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## 👋 Welcome New Contributors!

A warm welcome to new contributors who made their first commits in this release:

- [@horsto](https://github.com/horsto) ([mask precision PR](https://github.com/ultralytics/ultralytics/pull/20957))
- [@mihlefeld](https://github.com/mihlefeld) ([confusion matrix PR](https://github.com/ultralytics/ultralytics/pull/20955))
- [@RaahimSiddiqi](https://github.com/RaahimSiddiqi) ([memory management PR](https://github.com/ultralytics/ultralytics/pull/20960))

Your contributions help move the whole community forward!

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## 🔗 Helpful Links

- [Full Release Notes & Download v8.3.152](https://github.com/ultralytics/ultralytics/releases/tag/v8.3.152)
- [Compare changes since last release](https://github.com/ultralytics/ultralytics/compare/v8.3.151...v8.3.152)
- [Ultralytics YOLO11 Documentation](https://docs.ultralytics.com/)

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## 🚩 How to Try the New Release

Upgrade your Ultralytics package via pip:

```bash
pip install -U ultralytics

```

Explore the new features and improvements today! For detailed migration notes, see the [full changelog](https://github.com/ultralytics/ultralytics/compare/v8.3.151...v8.3.152).

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## 💬 We Value Your Feedback!

As always, your input is invaluable. Please post your experiences, bug reports, and suggestions in our [GitHub Discussions](https://github.com/orgs/ultralytics/discussions) or directly on the [issue tracker](https://github.com/ultralytics/ultralytics/issues). Together, we’ll keep pushing YOLO forward!

A huge thanks to everyone in the community and the Ultralytics team for your work, feedback, and support. Happy building and training! 🚀