v3.0.0 — MCP 2026-07-28 spec

Implements the MCP 2026-07-28 specification on MCP TypeScript SDK v2. Clients on 2025-era protocol versions are still served by default.

⚠️ Breaking changes

• Node.js 20+ is required. The Docker image now uses Node 22.
• **Legacy HTTP+SSE transport removed.**ne; connect to the Streamable HTTPendpoint at /mcp. --mode sse still works as a deprecated alias for --mode http.
• /connections endpoint removed (t
• Spec-compliant errors: unknown tools/prompts/resources return -32602 instead of -32603, and tool
  failures come back as results with `isEr

✨ Added

• 2026-07-28 protocol: stateless requests, server/discover, per-request _meta, richer serverInfo
• --protocol any|modern (`MCP_PROTOCOLnew protocol
• Cache hints on list/read results
• Argument completion for prompt and res
• --help / --version flags
• DNS rebinding protection when bound to
• Modern Protocol Guide

🐛 Fixed

• GitHub 404s and rate limits were treated as success (a missing component returned 404: Not Found as its source)
• The circuit breaker no longer trips on bad component names
• Component list cached for an hour insty request
• Resources use the spec's mimeType field
• Docker Compose healthcheck used the wr
• All npm audit vulnerabilities resolved; the unused uuid dependency was removed

📦 Install

npx @jpisnice/shadcn-ui-mcp-server@3.0.0

Full details: CHANGELOG.md

January 2026 Release

MCPB capabilty and other bug fixes

Release Oct 2025

v1.1.4

removed silly file

First Release

First release for the mcp server