# Unity Versions

* Original Tilt Brush release: 2018.4.11f1
* Jan 2021: 2019.4.18f1
* Apr 2021: 2019.4.24f1.
* May 2021: 2019.4.25f1.
* Feb 2022: 2020.3.29f1
* May 2022: 2021.3.3f1
* September 2022: 2021.3.9f1
* Jan 2023: 2021.3.16f1
* October 2023: 2021.3.30f1
* July 2024: 2022.3.34f1

See <https://github.com/icosa-foundation/open-brush/commits/main/ProjectSettings/ProjectVersion.txt>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.openbrush.app/developer-notes/unity-versions.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.