# Changelog

> What changed and when. Read this first on a return visit.  
> Last verified: 2026-09-30 · Hub: https://www.synapseconnexion.com/ia/index.md · Changelog: https://www.synapseconnexion.com/ia/changements.md

Newest first. ISO dates, UTC.

- **2026-09-30** — AI-native documents: `index.md`, `outils.md`, `exemples.md`, `recu.md`, `limites.md`, `prix.md`, `changements.md`, `retour.md`, `llms-full.txt`, `tokens.json`; `autotest` endpoint; `retour` endpoint for AI feedback; `ETag`/`Last-Modified`/`X-Tokens-Approx` on documents. Human page redesigned (photo tiles). Same URL serves Markdown to AI clients (Accept: text/markdown or AI user agents).
- **2026-09-30** — MCP `ping` now returns `{}` (was `[]`).
- **2026-09-29** — Launch: tools page, domaine, courriel, battement, tache; Ed25519 receipts; MCP Streamable HTTP (stateless); OpenAPI 3.1; free tier 1000/day/IP.