# A2UI Protocol <span class="version-badge stable">v0.8 — Stable</span>

> Version 0.8 is the current stable release, recommended for production use.

> NOTE: Living Document
>
> This specification is automatically included from `specification/v0_8/docs/a2ui_protocol.md`. Any updates to the specification will automatically appear here.

For more information, see the following related documentation:

- [v0.9 Protocol Specification](v0.9-a2ui.md) (Draft).
- [Evolution Guide: v0.8 → v0.9](v0.9-evolution-guide.md).
- [A2A Extension Specification](v0.8-a2a-extension.md) (for v0.8).

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