# Model Context Protocol: initial 2024-11-05 specification revision

> First published revision of the Model Context Protocol specification, dated 2024-11-05. The release note itself carries no detail about what the spec contains — only that this is the initial revision.

| | |
|---|---|
| **Tool** | MCP specification |
| **Version** | 2024-11-05 |
| **Kind** | spec_revision |
| **Published** | 2025-01-17 |
| **Observed** | 2026-08-11 |
| **Significance** | 4/5 |
| **Breaking** | no |
| **Categories** | api-change, docs |

> **Note:** this classification is below our confidence threshold and is pending human review.

## What changed


First published revision of the Model Context Protocol specification, dated 2024-11-05. The release note itself carries no detail about what the spec contains — only that this is the initial revision.


## Sources

- [github_release](https://github.com/modelcontextprotocol/modelcontextprotocol/releases/tag/2024-11-05) — retrieved 2026-08-11

## Community

_No curated reactions recorded. Facts and community takes are kept in separate layers
and never blended._

---
Canonical: https://changelogs.info/mcp-spec/2024-11-05
Entity: https://changelogs.info/mcp-spec
Event ID: `evt_2025-01-17_mcp-spec_2024-11-05`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.