The shift to a stateless MCP architecture removes the session-state burden from remote servers, making it practical to run them on serverless platforms, edge infrastructure, or behind any load balancer with horizontal scaling.
MCP version 2026-07-28 is live, described as the biggest update to the protocol since its launch. The headline change is a move to stateless architecture, simplifying deployment and scaling of remote MCP servers.
Extensions are now a formal part of the MCP protocol, covering three types: server-rendered UIs in sandboxed iframes (MCP Apps), long-running async operations (Tasks), and centrally managed MCP server access via an identity provider (Enterprise Managed Auth).
The MCP 2026-07-28 release also includes auth hardening and a formal deprecation policy, rounding out the protocol's largest update since launch.
The Claude Code Desktop app supports running an iOS simulator directly inside the app, allowing developers to iterate, test, and debug mobile apps without switching contexts.
A user complained that Opus 5 over-engineers solutions, treating every comment as a high-severity issue requiring thousands of lines of code. Jarred Sumner suggested trying effort medium or lower instead of high, which appears to produce better results on code tasks.
