2026.4.3

Comfy-Org/ComfyUI2026.4.3May 7, 2026by devlikepro

AI Summary

Introduced Model Context Protocol (MCP) support, added API key scopes for sessions, and provided new endpoints for message ID generation and authentication.

Key Highlights

Added MCP (Model Context Protocol) support
Added Session Key Scopes (read, send, etc.)
New API endpoint `GET /api/{session}/new-message-id`
Authentication via `?x-api-key` query parameter

New Features

MCP integration
Session Key Scopes
Message ID generation endpoint

Full Release Notes

🆕 **New**

-   `2026.4.3` - [**🧩 MCP**](https://waha.devlike.pro/docs/apps/mcp/) - [#1925](https://github.com/devlikeapro/waha/issues/1925)
-   `2026.4.3` - **API Key** - [**🔒 Session Key Scopes**](https://waha.devlike.pro/docs/how-to/security/#session-key-scopes) (read/send/etc) - [#2035](https://github.com/devlikeapro/waha/issues/2035)
-   `2026.4.3` - **API** - `GET /api/{session}/new-message-id` - generate message ID before sending
-   `2026.4.3` - **NOWEB**, **GOWS** - Provide message ID in send request - [#2054](https://github.com/devlikeapro/waha/issues/2054)
-   `2026.4.3` - **Auth** - [**🔒 Use `?x-api-key` query parameter**](https://waha.devlike.pro/docs/how-to/security/#use-x-api-key-query-parameter) for authentication

**🧩 Apps**

-   `2026.4.3` - [**🧩 MCP**](https://waha.devlike.pro/docs/apps/mcp/) - [#1925](https://github.com/devlikeapro/waha/issues/1925)

🛠️ **Fixes**
- `2026.4.3` - **GOWS** - Add tctoken lifecycle - fix #2050
- `2026.4.3` - **NOWEB** - Fix missing Facebook and Instagram ADs messages - fix #1922
- `2026.4.3` - **GOWS** - Fix "Sessions take a long time to start after server restart" - fix #2012
- `2026.4.3` - **GOWS** - Fix 403 on some media download - use re-upload request from the phone for this - fix #2049


⚙️ **Updates**
- `2026.4.3` - **NOWEB** - up engine
- `2026.4.3` - **GOWS** - up engine

**Full Changelog**: https://github.com/devlikeapro/waha/compare/2026.4.2...2026.4.3