Those of you who have used tools such as Claude are familiar with MCPs. With MCP 2026-07-28, this protocol has gone stateless. It is now a request/response model. Here are the main changes:
Stateless core. MCP moves from a bidirectional stateful protocol to a request/response model. Servers can now deploy on serverless and edge infrastructure. This simplifies the experience of building MCP servers for Claude and scaling their usage as they grow in adoption.
Standardized extensions. MCP Apps and Tasks now ship under a versioned extensions framework, giving developers a formal path to add capabilities like interactive UIs and long-running work without changing the core protocol.
Auth hardening. Authorization now aligns with production OAuth 2.0 and OIDC deployments, so MCP servers connect to enterprise identity systems like Entra or Okta without workarounds.
This update also offers hardening authorization and standardized extensions.
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