The next Model Context Protocol specification (2026-07-28) lands on July 28. Postman’s MCP Inspector already supports it, including the new stateless transport, so you can test and debug your servers before, during, and after you migrate.

What actually changed

There’s a lot in this release, but the headline is simple: MCP is now stateless.

Before, every connection meant a session: a handshake, a session ID, and sticky routing to keep a client pinned to one server instance. That was tricky to run in production. Now an MCP server behaves like any ordinary HTTP service. You can put a load balancer in front of it and scale it horizontally, the way you already scale everything else.

Alongside that come MCP Apps, tighter authorization, and a handful of deprecations. For the full spec breakdown, read the official release post. We won’t repeat it here.

What it means for server developers

If you maintain an MCP server, moving to the new spec is a breaking change when you upgrade. The good news: the upgrade path isn’t bad. The official SDKs are already updated, and most of the work is infrastructure. You enable stateless mode and drop the session machinery you no longer need.

The recommended approach is a transition period where your server speaks both transports at once: the legacy one for existing clients, and the new one for clients that have upgraded. That way nothing breaks while the ecosystem catches up.

How Postman helps you migrate

Postman’s MCP Inspector is built for exactly this moment:

• Automatic transport detection. Connect to a server and Postman detects which transport it’s using, new or legacy, and shows you the negotiated protocol version in the console.
• Test both sides. Serving new and legacy in parallel? Point Postman at either. Select the legacy option to confirm existing clients still work, then verify your new stateless endpoint behaves correctly.
• Debug stateless behavior. Because there are no sessions, multi-turn flows like elicitation now carry their context in the request itself. Postman lets you fire an elicitation request, fill the form, approve it, and watch the whole round trip work without a session.

Existing servers don’t break, and nothing changes for anyone who isn’t upgrading yet. When you’re ready to move, Postman gives you a way to prove the new protocol and stateless mode work before you ship.

Get started

The MCP Inspector in Postman is ready today. Upgrade a server, point Postman at it, and see the new transport in action ahead of the July 28 release.

Resources

• Model Context Protocol specification
• MCP official site and release notes
• MCP SDKs on GitHub
• Postman MCP Inspector documentation
• Postman AI Agent Builder

The post MCP goes stateless — and Postman’s ready appeared first on Postman Blog.

Dan Abramov joins Scott and Wes to explain AT Protocol, the open standard quietly rebuilding the social web. They get into how it actually works, why it’s way bigger than just Bluesky, and why Dan calls it one of the most interesting ideas on the internet right now.

Show Notes

• 00:00 Intro
• 00:45 Welcome to Syntax!
• 01:46 Introduction of Dan Abramov
• 02:55 Understanding AT Protocol and Its Importance
• 06:41 The Relationship Between AT Protocol and Bluesky
• 08:22 Identity and Hosting in AT Protocol
• 11:29 Brought to you by Sentry
• 11:54 Use Cases for AT Protocol
• 13:08 How Content is Managed in AT Protocol
• 19:12 Public Data and Future Extensions of AT Protocol
  • pds.ls
• 20:33 Schema Flexibility in AT Protocol
  • Standard.site
• 25:28 Exploring AT Protocol Patterns
  • UFOs
• 28:27 Media and Data Integration Challenges
  • Stream.place
• 31:15 User Experience and Accessibility in AT Protocols
• 32:13 AI Intersections with AT Protocol
• 36:54 Comparing Protocols: Bluesky vs. Mastodon
• 41:43 Decentralization and Crypto Connections
• 44:59 Addressing Abuse and Spam in Protocols
• 48:24 Community Trust and Content Quality
• 51:20 Innovations and Future of AT Protocol
• 55:55 Sick Picks + Shameless Plugs

Sick Picks

• Scott:
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• Dan: Solo Monk

Shameless Plugs

• Scott:
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• Dan: Next.js 16.3: Instant Navigations

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Danil Chernyshev: Coaching the Outsider In—Helping a Distrustful Team Through Transformation

Read the full Show Notes and search through the world's largest audio library on Agile and Scrum directly on the Scrum Master Toolbox Podcast website: http://bit.ly/SMTP_ShowNotes.

"Developers and QAs know each other very well, but they don't trust anybody else." - Danil Chernyshev

This week's coaching conversation starts with a hard situation. A subcontractor's developers—people who had always worked isolated from the business, with no plans and no communication—were brought back inside the "mother firm" as part of a digital transformation. Overnight they faced new teams, Scrum, SDLC, CI/CD, and full transparency. The developers and QAs trusted each other completely and trusted no one else: not the Scrum Master, not the Product Owner, not the BAs. Forced to estimate with story points, every story came back as a 3 or a 5, with no conversation. When Danil asked why, the answer was always "we'll discuss internally and tell you tomorrow"—he suspected a second, hidden daily Scrum without him. As he and Vasco unpack it, the real issue is transparency itself: a team used to hiding now feels exposed and doesn't know the consequences of being open. Vasco offers an experiment—build a "trio" of the Product Owner, the Scrum Master, and one friendly insider from the team to prepare refinements together. The Product Owner is always the outsider; pairing them with a trusted insider lets ideas and experiments spread faster. Before you can improve the Scrum, you first have to bring the outsiders in.

Self-reflection Question: Where on your team is trust the real bottleneck—and who is the "insider" who could help an outsider earn it?

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🔥In the ruthless world of fintech, success isn't just about innovation—it's about coaching!🔥

Angela thought she was just there to coach a team. But now, she's caught in the middle of a corporate espionage drama that could make or break the future of digital banking. Can she help the team regain their mojo and outwit their rivals, or will the competition crush their ambitions? As alliances shift and the pressure builds, one thing becomes clear: this isn't just about the product—it's about the people.

🚨 Will Angela's coaching be enough? Find out in Shift: From Product to People—the gripping story of high-stakes innovation and corporate intrigue.

Buy Now on Amazon

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About Danil Chernyshev

Danil is a results-driven Scrum Master and Delivery Manager passionate about optimizing SDLC processes and unlocking development teams' potential. With a keen interest in AI, he empowers organizations to innovate and excel, bridging agile practices with cutting-edge technology for impactful results.

You can link with Danil Chernyshev on LinkedIn.

Grace Shao is the author of AI Proem. Shao joins Big Technology Podcast to discuss how Chinese AI labs have caught their American rivals despite operating with less advanced computing infrastructure. Tune in to hear how talent, specialization, open-source collaboration, and fierce competition helped models like Kimi K3 approach the U.S. frontier, and what that means for OpenAI, Anthropic, and the business of selling intelligence. We also cover model distillation, China’s compute constraints, the growing importance of AI products, why top researchers are returning to China, and the country’s emerging robotics advantage. Hit play for a clear-eyed look at whether the United States can preserve its AI lead.

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Languages can vanish just as easily as books, websites, or archives, and when they do, entire ways of understanding the world can disappear with them. In the fifth episode of our special six-part series on Vanishing Culture, host Vida Vojić speaks with Peter Scholing of Biblioteca Nacional Aruba and the Coleccion Aruba digital heritage platform about the importance of preserving Papiamento, Aruba’s creole language, and the cultural heritage it carries.

Read Vanishing Culture for free at the Internet Archive or purchase in print: https://archive.org/details/vanishing-culture-2026