What's New in Office 365 - Sunday, May 24, 2026 — What’s New in Microsoft 365

Copilot Studio Blog

Extend AI voice support with real‑time voice agents in Copilot Studio

Real-time voice agents are now generally available in Copilot Studio, supporting adaptive voice experiences for complex customer conversations. Customers expect support that resolves issues quickly, d . . .

Tuesday, May 19, 2026

Improve complex UI automation with computer‑using agents

See how new updates to computer‑using agents improve UI automation with secure credentials, detailed monitoring, and scalable Cloud PC capacity. When we first introduced computer-using agents (CUAs)—A . . .

Tuesday, May 19, 2026

Automate business processes with agents plus workflows in Microsoft Copilot Studio

Introducing new capabilities in Microsoft Copilot Studio that help you automate your business processes by mixing AI agents and workflows. Today we are introducing new capabilities in Microsoft Copilo . . .

Tuesday, May 19, 2026

A guide to managing real-time voice agents in Copilot Studio

Explore an in-depth guide to managing customer-facing real-time voice agents with Copilot Studio, from governance foundations to production readiness. In this article Why real-time voice agents requir . . .

Tuesday, May 19, 2026

Microsoft 365 Copilot Blog

What’s New in Microsoft 365 Copilot | April 2026

Welcome to the April 2026 edition of What’s new in Microsoft 365 Copilot! Every month, we highlight new features and enhancements to keep Microsoft 365 admins up to date with Copilot features that hel . . .

Wednesday, May 13, 2026

Microsoft 365 Blog - Tech Community

High Volume Email Is Now Available in Exchange Online

Reliable email remains one of the most critical ways organizations communicate with employees at scale especially for operational, time‑sensitive messages like payroll notifications, security advisori . . .

Wednesday, May 20, 2026

Microsoft 365 Developer Blog

General Availability of SharePoint Framework 1.23 – Advancing the modern developer experience

We are excited to announce general availability for the SharePoint Framework 1.23. We are rolling out new features in extensions, preview of new CLI and addressing known npm audit issues. The post Gen . . .

Wednesday, May 13, 2026

Microsoft OneDrive Blog

OneDrive Office Hours | May 2026

Get ready for May’s OneDrive Customer Office Hours! This session creates space for open conversation around the latest updates and how they support the way you use your files every day. In this month’ . . .

Thursday, May 14, 2026

Microsoft 365 Insider Blog

Shaping Copilot across Word, Excel, and PowerPoint

We’ve been working to make Microsoft 365 feel more connected and integrated with Copilot, available as a helpful thought partner, when you need it. We recently updated Word, Excel and PowerPoint with . . .

Friday, May 22, 2026

Meet Murray Sargent, the quiet force behind accessible math

If you’ve ever typed an equation into Microsoft Word, copied math from the web into a document, or relied on a screen reader to understand an equation, you’ve benefited from Murray Sargent’s work, eve . . .

Thursday, May 21, 2026

Exchange Team Blog

How to determine which Resource Mailboxes are being actively used

Today we wanted to take a few minutes to discuss a topic that has come up several times. Consider the scenario where your organization has created Resource mailboxes, and you want to know which ones a . . .

Thursday, May 21, 2026

Addressing Exchange Server May 2026 vulnerability CVE-2026-42897

On May 14, 2026, Microsoft disclosed CVE-2026-42897, a reported vulnerability affecting Exchange Outlook Web Access (OWA). An attacker could exploit this issue by sending a specially crafted email to . . .

Wednesday, May 20, 2026

Replacing IIS SMTP virtual server with Exchange Edge Transport

Years go by and we continue to see customers still relying on the IIS 6.0 SMTP virtual server feature, which has been out of support for a looong time. To give you an idea just how old this component . . .

Tuesday, May 19, 2026

Writeback for Cloud-Managed Remote Mailboxes: Now in Public Preview

In our previous posts, we announced the Public Preview and the General Availability of Cloud-Managed Remote Mailboxes – a key step toward retiring the ‘last Exchange Server’ in your organization. The . . .

Friday, May 15, 2026

No Exchange Server Security Updates for May 2026

We wanted to let the Exchange Server community know that there are no security releases for any version of Exchange Server in May 2026, for customers with Exchange SE, or Exchange 2016 or 2019 ESU. Pl . . .

Thursday, May 14, 2026

Viva Engage Blog

Leadership communication in the flow of work

Leadership today is less about occasional broadcasts and more about consistent, credible presence. Employees expect leaders to:

Provide clarity amid constant change Show follow-through, not just dire . . .

Thursday, May 14, 2026

Access Blog

Zoom in or out of forms, tables, and queries when in Form View or Datasheet View

Access now lets you zoom in and out when you’re working with forms, tables, and queries in Form View or Datasheet View. Zoom in for a closer look at your data or zoom out to see more on screen at once . . .

Tuesday, May 19, 2026

Power Apps Blog

Power Fx: User Defined Types Generally Available

User Defined Types (UDTs) are now generally available ! As of Power Apps Studio version 3.26044, UDTs are enabled by default for new apps and can be enabled for existing apps under Settings > Updates . . .

Wednesday, May 13, 2026

Power BI Blog

Power BI Tenant Migration: Trade-offs, risks, and realities

Author: Winnie Li, Cloud Solution Architect

Friday, May 22, 2026

Power BI May 2026 Feature Summary

Author: Katie Murray, Senior Program Manager - Power BI continues to evolve with updates that make it easier to explore data, generate insights, and build more polished reports. This month’s release b . . .

Wednesday, May 20, 2026

New Power Query experience in Power BI Desktop (Preview)

Authored by: Sara Lammini Rodriguez - Product Manager II, and Miguel Escobar - Senior Product Manager

Wednesday, May 20, 2026

Outbound Access Protection for semantic models (Preview)

Author: Kay Unkroth, Principl Program Manager - Outbound Access Protection (OAP) is a workspace-level network security and governance feature that blocks outbound traffic from a workspace by default a . . .

Tuesday, May 19, 2026

Power BI April 2026 Feature Summary

Welcome to the April Power BI update!Power BI’s April 2026 update is here, bringing continued improvements across Copilot and AI, reporting, visuals, and modeling. This release includes more flexibili . . .

Thursday, May 14, 2026

Microsoft Security Blog

Microsoft recognized as a Leader in The Forrester Wave™ for Workforce Identity Security Platforms

Identity is the backbone of modern cybersecurity. Every access decision carries risk, across employees, partners, devices, workloads, and an expanding set of AI-powered agents. But most organizations . . .

Friday, May 22, 2026

From edge appliance to enterprise compromise: Multi-stage Linux intrusion via F5 and Confluence

In this article Attack chain overview Initial access: Exploiting edge appliances Discovery and reconnaissance Lateral movement and identity compromise Mitigation and protection guidance Microsoft Defe . . .

Friday, May 22, 2026

Microsoft Security success stories: How St. Luke’s and ManpowerGroup are securing AI foundations

AI is reshaping how work gets done—and how risks emerge across cloud, data, identity, and more. Many organizations want AI-powered productivity, but their security foundations aren’t yet built for it. . . .

Friday, May 22, 2026

What’s new in Microsoft Security: May 2026

At Microsoft, security innovations are purpose-built to help every organization protect end-to-end with the speed and scale of AI. Our vision is simple: security should be ambient and autonomous, just . . .

Thursday, May 21, 2026

Mini Shai Hulud: Compromised @antv npm packages enable CI/CD credential theft

In this article Attack chain overview Technical analysis How GitHub took action to prevent further harm Mitigation and protection guidance Microsoft Defender XDR Detections Microsoft Defender XDR Thre . . .

Wednesday, May 20, 2026

Securing the gaming culture of cultures

The Deputy CISO blog series is where Microsoft Deputy Chief Information Security Officers (CISOs) share their thoughts on what is most important in their respective domains. In this series, you will g . . .

Wednesday, May 20, 2026

Introducing RAMPART and Clarity: Open source tools to bring safety into Agent development workflow

In this article Why we are investing in this RAMPART: Continuous safety testing for agentic AI Clarity: Helping check software engineering assumptions RAMPART and Clarity available now The AI systems . . .

Wednesday, May 20, 2026

Exposing Fox Tempest: A malware-signing service operation

In this article Fox Tempest’s role and impact Fox Tempest’s malware signing as a service infrastructure Defending against Fox Tempest-enabled attacks Microsoft Defender detections Indicators of compro . . .

Tuesday, May 19, 2026

How Storm-2949 turned a compromised identity into a cloud-wide breach | Microsoft Security Blog

In this article Attack chain overview Cloud compromise: Microsoft Entra ID and Microsoft 365 Initial access and persistence through targeted social engineering and SSPR abuse Directory discovery and p . . .

Monday, May 18, 2026

How to better protect your growing business in an AI-powered world

AI is rapidly reshaping how work gets done in companies and organizations. In celebrating National Small Business Month, we want to acknowledge the unique challenges that growing business leaders face . . .

Monday, May 18, 2026

Defense in depth for autonomous AI agents | Microsoft Security Blog

Designing Secure Autonomous AI Agents with Defense in Depth AI agents are moving beyond assistance and into action. Instead of generating content, they invoke tools, modify data, trigger workflows, an . . .

Thursday, May 14, 2026

Kazuar: Anatomy of a nation-state botnet

In this article Delivery Module types Botnet operations Who is Secret Blizzard? Mitigation and protection guidance Microsoft Defender detections Kazuar, a sophisticated malware family attributed to th . . .

Thursday, May 14, 2026

When configuration becomes a vulnerability: Exploitable misconfigurations in AI apps | Microsoft Security Blog

In this article Background What is an exploitable misconfiguration? Exploitable misconfigurations in popular AI applications Minimizing the risk: Practical deployment guidance How Microsoft Defender f . . .

Thursday, May 14, 2026

Microsoft Azure Blog

Powering multi-cluster workloads with seamless cross‑cluster networking for Azure Kubernetes Fleet Manager

With Cilium-based cross-cluster networking, we are delivering a managed, high-performance network that can span your entire fleet. In this article The challenge of multi-cluster networking Our vision: . . .

Friday, May 22, 2026

Azure NetApp Files for EDA workloads: From revolution to breakthrough at scale

Azure NetApp Files is redefining what’s possible for EDA in the cloud—delivering scalable, high-performance storage that supports massive concurrency, low latency, and consistent production performanc . . .

Friday, May 22, 2026

Azure IaaS: Deploy high-performance workloads with a system-level approach

Performance in the cloud is no longer defined by individual resources—it’s shaped by how compute, storage, and networking work together. Azure IaaS takes a system-level approach to help organizations . . .

Wednesday, May 20, 2026

Azure Files Entra-Only identities: Advancing cloud-native identity and security | Microsoft Azure Blog

We are excited to announce the general availability (GA) of Entra-Only identities for Azure Files SMB. With native Microsoft Entra ID authentication, organizations can now grant secure, identity-based . . .

Tuesday, May 19, 2026

From commit to cloud: Powering what’s next for PostgreSQL | Microsoft Azure Blog

PostgreSQL has become foundational to how modern applications are built. It powers everything from early‑stage startups to some of the most demanding production systems in the world. Its longevity isn . . .

Wednesday, May 13, 2026

Microsoft Foundry Blog

Striking the Right Balance: ECN and PFC Thresholds for AI Clusters

Introduction In large-scale AI training clusters, congestion control is critical to maintaining high GPU utilization and low job completion times. Two key mechanisms in RoCEv2 (RDMA over Converged Eth . . .

Friday, May 22, 2026

Monitoring & Observability in Microsoft Foundry

Production AI is a moving target. Once you deploy an AI-powered agent, its behavior can shift without a single line of code being changed. As Microsoft’s Foundry team states: “The hard part isn’t gett . . .

Friday, May 22, 2026

Foundry IQ as a Shared Knowledge Brain for Multiple AI Agents

When we build AI agents today, the hardest part is often not reasoning or generation — it’s giving agents access to the right knowledge. In many projects, each agent ends up with its own retrieval log . . .

Friday, May 22, 2026

When AI Should Ask for Help: Human-in-the-Loop Patterns in Microsoft Foundry

As AI agents become increasingly capable, modern applications are shifting from deterministic workflows to systems that can reason, adapt, and act. Platforms like Microsoft Foundry enable this transit . . .

Thursday, May 21, 2026

Teaching AI to Remember: Exploring Memory Store in Microsoft Foundry

Imagine interacting with an AI assistant that remembers your preferences - the tools you use, the projects you’re working on, or even how you like your coffee. In many AI systems today, maintaining th . . .

Thursday, May 21, 2026

What’s New in Microsoft Foundry Labs – May 2026

Four new releases this month — a new benchmark for how agents interact, an experimental end-to-end agentic stack, a faster image model, and a first-party geospatial model. Last month we kicked off thi . . .

Thursday, May 21, 2026

Cohere Command A+ Now Available in Microsoft Foundry

Command A+ is Cohere’s newest mixture-of-experts (MoE) model designed for enterprise-grade agentic AI workloads with exceptional efficiency and scalability. Released under an Apache 2.0 license, the m . . .

Thursday, May 21, 2026

Securing Azure AI Applications: Against Prompt Injection | Part - 2

Introduction — Why Prompt Injection Matters? In December 2023, a customer walked up to a Chevrolet dealership’s chatbot and asked it to do something simple: agree with everything the customer said and . . .

Thursday, May 21, 2026

Introducing Grok 4.3 on Microsoft Foundry: Latest Generation Agentic Capabilities

Customers building advanced AI systems increasingly need models that can reason deeply, act autonomously, and integrate reliably into real‑world workflows—all without compromising on governance or cos . . .

Monday, May 18, 2026

Now in Foundry: Tongyi-MAI Z-Image-Turbo, with FLUX.1-schnell and SDXL base 1.0

This week’s Model Mondays edition pairs three models available through the Hugging Face collection in Microsoft Foundry: Tongyi-MAI’s Z-Image-Turbo, a new designed for lower latency on a single GPU an . . .

Monday, May 18, 2026

“Not Available in Your Region” Isn’t a Dead End: A Security Assessment of Global Deployments

You want to build with the latest Microsoft Foundry model. You checked the regional availability, and it isn’t there yet — only Global Standard. Now you’re weighing the capability you actually need ag . . .

Monday, May 18, 2026

Designing AI-Driven Observability for Trustworthy Agentic AI Systems

1.Why Observability Changes in Agentic AI Systems A developer recently recounted how a single runaway AI agent loop burned through $500 in OpenAI API charges in just 45 minutes with no errors or alert . . .

Friday, May 15, 2026

Open Model Inference at Scale on Foundry: What’s New with Fireworks AI

We launched the public preview of Fireworks AI on Microsoft Foundry two months ago, bringing best-in-class open model inference directly into Azure. The traction has been real and high. Fireworks AI’s . . .

Thursday, May 14, 2026

Building an AI-Powered Contract Price Adjustment Agent with Docusign MCP and Microsoft Foundry

Acknowledgment: Special thanks to the Docusign Partner Solution Architects team for the original source code and examples that informed this implementation; I adapted and extended that foundation to b . . .

Thursday, May 14, 2026

NVIDIA Dynamo on AKS - Autoscaling LLM Inference

Large Language Models (LLMs) are rapidly moving from experimentation to production. While training often gets the spotlight, inference at scale is where real-world complexity emerges—especially when p . . .

Wednesday, May 13, 2026