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Word: Legal Agent in Frontier | Microsoft Community Hub
Building on our recent announcement of agentic capabilities in Word, today we are introducing the Legal Agent in Microsoft Word.

Available today: Anthropic Claude Opus 4.7 in Microsoft 365 Copilot ...
Today we're expanding model choice in Microsoft 365 Copilot with the addition of Anthropic's latest model—Claude Opus 4.7—now available in Copilot Cowork (Frontier) and Copilot Studio early release cycle environments, and rolling out to Copilot in Excel.

March 10, 2026—KB5079473 (OS Builds 26200.8037 and 26100.8037 ...
This cumulative update for Windows 11, version 25H2 and 24H2 (KB5079473), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained ...

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Windows help and learning - support.microsoft.com
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Available today: GPT-5.5 Thinking and ChatGPT Images 2.0 in Microsoft ...
Today, we’re expanding what Microsoft 365 Copilot can do with GPT-5.5 Thinking and ChatGPT Images 2.0 bringing stronger support for deeper analysis, multi-step work, and visual creation. GPT-5.5 Thinking is now available in Copilot Studio early release cycle environments as GPT-5.5 Reasoning and is rolling out across Microsoft 365 Copilot in Copilot Chat, Word, Excel, and PowerPoint. ChatGPT ...