{"slug": "mcp-2026-07-28-support-in-14hrs-while-retaining-legacy-compatability", "title": "MCP 2026-07-28 support in 14hrs while retaining legacy compatability", "summary": "AsDecided now supports MCP 2026-07-28, delivering a new stateless lifecycle for current hosts while retaining compatibility with initialize-based clients through MCP 2025-11-25. The update includes server/discover, per-request protocol metadata, standard MCP HTTP routing headers, explicit result types, cache hints, and JSON Schema 2020-12-compatible tool schemas, governed internally via ADR-121.", "body_md": "# Current MCP,without breaking the old one.\n\nAsDecided now supports MCP 2026-07-28. Current hosts get the new stateless lifecycle; initialize-based clients keep working.\n\nWhat shipped\n\n`server/discover`\n\nand per-request protocol metadata- standard MCP HTTP routing headers and error responses\n- explicit result types and cache hints\n- JSON Schema 2020-12-compatible tool schemas\n- frozen compatibility through MCP 2025-11-25\n\nThe change was governed inside AsDecided itself through ADR-121, a linked requirement, a wire-contract design, and executable verification paths.", "url": "https://wpnews.pro/news/mcp-2026-07-28-support-in-14hrs-while-retaining-legacy-compatability", "canonical_source": "https://asdecided.com/changelog/v0.25.0", "published_at": "2026-07-29 07:28:29+00:00", "updated_at": "2026-07-29 07:53:14.650181+00:00", "lang": "en", "topics": ["developer-tools"], "entities": ["AsDecided", "MCP 2026-07-28", "MCP 2025-11-25", "ADR-121", "JSON Schema 2020-12"], "alternates": {"html": "https://wpnews.pro/news/mcp-2026-07-28-support-in-14hrs-while-retaining-legacy-compatability", "markdown": "https://wpnews.pro/news/mcp-2026-07-28-support-in-14hrs-while-retaining-legacy-compatability.md", "text": "https://wpnews.pro/news/mcp-2026-07-28-support-in-14hrs-while-retaining-legacy-compatability.txt", "jsonld": "https://wpnews.pro/news/mcp-2026-07-28-support-in-14hrs-while-retaining-legacy-compatability.jsonld"}}