# Headset Calibration release notes

Release notes for **AR 51 Headset Calibration**, the Unity package that lines up a Meta Quest 3 headset's virtual world with the AR 51 capture space automatically. Its version follows the AR 51 Unity SDK release it works with. Newest release first.

:::tip[Get it]
Add it via **[Unity Package Manager](/docs/unity-sdk/headset-calibration/install/)** (recommended) — or download the **[.unitypackage and demo apps](/download/)**.
:::

## 3.0.3.2R

_2026-10 · package 3.0.302 · first release · for AR 51 Unity SDK 3.0.3.2R_

### Requirements

- **AR 51 Unity SDK 3.0.3.2R** and its **Meta Quest (Meta XR)** package.
- **Unity 2022.3** or newer; **Meta Quest 3**, tethered (Quest Link) or standalone.

### New

- **Automatic alignment.** `HeadsetCalibrator` lines up the headset's world with the AR 51 capture space while the wearer moves — no button or poses — and recovers by itself after a headset recenter or a loss of tracking.
- **Wearer hints.** `State`, `Hint`, `StateChanged` and `HintChanged` let your app tell the wearer what to do ("walk a few steps", "hold still").
- **Hint panel.** `CalibrationHintPanel` is an optional in-headset panel that shows a hint only when the wearer can help, with editable texts.
- **Prefab.** The `Headset Calibrator` prefab combines the calibrator and the hint panel — drop it in your scene.
- **Calibration Demo sample.** A ready scene with two small example scripts, installable from Package Manager.
- **Demo apps.** Ready-to-run builds for Windows (Quest Link) and Quest standalone on the [download page](/download/).

See **[Headset Calibration](/docs/unity-sdk/headset-calibration/overview/)** for setup and the full API.