Release notes
# Release Notes: v3.5.2
We're excited to announce **Live Background Removal Lite v3.5.2**! 🪄 This release builds on stability and brings **major improvements for subject centering, performance, and segmentation quality**.
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## ✨ New Features & Improvements
### 🏹 Experimental: "Center Frame" Subject Tracking
- **Automatically centers the subject** in your video feed, even as you move around the frame.
- Lets you enable subject centering from the plugin UI (under Advanced Settings).
- Now fully localized (English, Japanese, Korean).
- **Great for creators who move or reposition during streams!**
- Can be toggled on/off at any time.
### 🎯 Performance: Hardware-Accelerated Bounding Box (ROI) Detection
- Bounding box calculation for the subject's region is now **significantly faster** on modern CPUs:
- Uses **AVX2 (x86)** and **NEON (ARM)** SIMD for rapid detection when available.
- Improves real-time responsiveness, especially on supported Windows and ARM-based hardware.
### đź› General Enhancements & Refactoring
- **Safer and clearer calculations** for region-of-interest and centering logic—improving reliability and reducing edge-case surprises.
- Refactored and clarified code to prevent division-by-zero and other minor possible issues.
- Codebase maintenance: removed legacy `UpdateChecker.hpp`.
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## How to use "Center Frame"
1. Open the filter properties in OBS.
2. Find the **"Enable Center Frame (Experimental)"** option under Advanced Settings.
3. Toggle it ON to have the subject automatically centered!
- You can also display the debug visualization from the same window.
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## Why upgrade?
- **Sharper segmentation**—especially when you are further from the camera or not filling the frame.
- **Smoother user experience** with less jitter, better centering, and reduced processing overhead.
- **New features** (subject tracking centering and developer visualization) for a more professional, polished broadcast.
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Thank you to all contributors and testers—and happy streaming! If you find issues or have suggestions, [open an issue](https://github.com/kaito-tokyo/live-backgroundremoval-lite/issues).
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**Full Changelog:** [See all commits](https://github.com/kaito-tokyo/live-backgroundremoval-lite/compare/3.5.1...3.5.2)