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Not all model upgrades are upgrades

A new model drops with lower per-token pricing and better benchmarks. You switch. A week later someone asks why the agent is burning 12x more tokens on the same task while producing worse output. We ran 150 agent tasks across 15 scenarios on two models, Claude Sonnet 4.6 and Claude...
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Jul 8, 2026
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Let’s Learn GitHub Copilot App - Free Virtual Training Event

Katie Savage
Join us for a free online event series kicking off July 16 to learn how to get started with the GitHub Copilot App!
Microsoft for Developers
Jul 8, 2026
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Announcing TypeScript 7.0

Daniel Rosenwasser
Today we are proud to announce the availability of TypeScript 7, a 10x faster native port of TypeScript! Since its early days, TypeScript has promised to deliver on JavaScript that scales. By bringing strong type-checking and rich tooling to the world of JavaScript, TypeScript made it...
TypeScript
Jul 8, 2026
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Building on Vercel's eve + Azure Cosmos DB: An Agent That Remembers

Sajeetharan Sinnathurai
Most "AI agent" demos forget everything the moment the process exits. That's fine for a toy project, but useless for anything real. An agent that helps you write, triage, or support needs two things a language model alone can't give it: durable state and the ability to recall the right...
Azure Cosmos DB Blog
Jul 8, 2026
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The other kind of control flow guard check: The combined validate and call

Raymond Chen
A two-in-one package.
The Old New Thing
Jul 8, 2026
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The hidden variables in your agent eval

Waldek Mastykarz
This is the seventh article in a series about Agent Experience (AX): the practice of making AI coding agents work correctly with your technology. The series covers what you can and can't control in the agent stack, how to measure whether your extensions are helping or hurting, and how to...
Microsoft for Developers
Jul 8, 2026
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Agent Framework’s Orchestration Patterns Reach 1.0

Evan Mattson
Python's agent-framework-orchestrations package is now 1.0.0. That puts Microsoft Agent Framework's orchestration layer at 1.0 across Python and .NET. Sequential, concurrent, group chat, handoff, and magentic orchestration are now stable in both SDKs. You can pick the coordination...
Microsoft Agent Framework
Jul 7, 2026
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Applications Are Not Packages

Howard Kapustein
Applications are not packages. Let me repeat. Applications are not packages. This is a common misconception due to the (too) often blurring of concepts and terminology. Packages and applications are different and distinct things, so it's important to understand what those words mean...
Inside MSIX
Jul 7, 2026
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How did Windows 95 decide that a setup program ran?

Raymond Chen
It used some heuristics.
The Old New Thing
Jul 7, 2026
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Don't rewrite your CLI for agents

Waldek Mastykarz
There's advice making the rounds: replace your CLI args with a single --json payload so agents can use your tool more effectively. The thinking being, that agents already think in structured formats, and nested data maps cleanly to JSON. Flat args on the other hand, force awkward...
Microsoft for Developers