https://auth0.com/blog/mcp-specs-update-all-about-auth/?ref=ajeetraina.com
Model Context Protocol (MCP) Spec Updates from June 2025
Guide to the June 2025 MCP spec updates: Learn about OAuth Resource Servers, mandatory Resource Indicators (RFC 8707), and new security guidance.
model context protocolmcp specupdatesjune
https://lists.w3.org/Archives/Public/public-webagents/2026Feb/0014.html
WebMCP TN 4: is the spec ready? https://web-mcp.net/ from Paola Di Maio on 2026-02-28...
https://claude.com/blog/bringing-mcp-2026-07-28-to-claude
MCP 2026-07-28 spec: stateless core, coming to Claude | Claude by Anthropic
The MCP 2026-07-28 spec is live, moving the Model Context Protocol to a stateless core with standardized extensions and hardened auth. Support is rolling out...
https://den.dev/blog/mcp-november-authorization-spec/
What's New In The 2025-11-25 MCP Authorization Spec | Den Delimarsky
Nov 24, 2025 - Preview of authorization changes landing in the 2025-11-25 MCP spec release, marking the protocol's first anniversary with notable auth-flow updates.
what s new
https://www.arcade.dev/blog/mcp-refresh-token-gap/
Closing the Refresh Token Gap in the New MCP Spec
Jul 21, 2026 - MCP stayed quiet on refresh tokens, so clients drifted. The 2026 release clarifies the behavior — and why consistent refresh tokens matter in production.
refresh tokenclosinggapnewmcp