Multilingual support in Copilot for Viva Glint [Web]

Microsoft 365 Copilot release notes

December 10, 2025
Updates released between November 25, 2025, and December 10, 2025.

Microsoft 365 Copilot app
- Create polished videos faster with seamless editing and brand customization [Web]

Turn text prompts or PowerPoint, Word, and PDF files into high-quality videos. Create professional videos quickly with easier editing, brand integration, and media customization.

Roadmap ID: 501560
Details:
What changed:

With the upgraded AI Video Creator in Microsoft 365 Copilot, use these new capabilities:

• Transcript-based editing for greater control.
• Access to your assets from OneDrive to update stock media.
• Natural-sounding voiceovers for more authentic narration.
• Brand color integration from Brand Kit.
• A redesigned, scene-based structure for streamlined storytelling.
• A cleaner editing experience for faster, intuitive workflows.
  Why: Video is a powerful medium, but creating professional-quality content is often time-consuming and technically challenging. This update removes roadblocks, so teams create compelling videos in a fraction of the time, using assets and brand elements they already have.

Try this:

• In Microsoft 365 Copilot, select Create and upload a Word, PDF, or PowerPoint file to generate your first video draft.
• Click on a sentence in the transcript to cut or move sections without timeline complexity.
• Add your official colors from Brand Kit, and swap generic visuals with your OneDrive media for a branded look.

Why this matters:
Business Impact: Reduce production bottlenecks and costs by empowering employees to create professional videos for training, marketing, or executive updates without third-party agencies.

Personal Impact: Focus on the story, save hours on content creation, and eliminate the need for advanced video editing.

Additional Resources:
Support:

Create a video with the Microsoft 365 Copilot app

- Get AI-powered summaries with search views

AI Views creates AI-generated summaries to help you identify relevant content, quickly understand search results, and spend less time digging through documents.

Details:
What changed:

AI Views is now available in the Microsoft 365 Copilot app search experience. It uses AI and Microsoft Graph signals to generate key point summaries for your search results directly on the Copilot Search page.

Why: Users often waste time viewing multiple documents to find the right information. Now users see an AI and Microsoft Graph-powered overview of search results inside the Search results page.

Try this:

• Open the Microsoft 365 Copilot app and run a search for a project or topic you’re working on.
• Hover over any search result to see the Overview button
• View a summary containing context and use the input box at the bottom to Ask Copilot.
  Why this matters:

Business Impact: Teams make decisions faster with quick access to context-rich summaries, improving productivity.

Personal Impact: Get key information immediately, letting you focus on delivering results instead of hunting for data.

Microsoft 365 Copilot extensibility
Access custom engine agents in multiple apps [Web]

Use custom engine agents in Word and Excel for a unified Copilot experience everywhere you work.

Roadmap ID: 481136
Details:

What changed: You can see more available custom engine agents across key Microsoft 365 surfaces.

Why: Power users and developers can experience reduced fragmentation and improved workflow consistency.

Try this:
In Outlook, activate a custom agent for summarizing incoming correspondence based on enterprise policies.
Why this matters:

Business Impact: Extends the value of custom Copilot agents across the Microsoft 365 ecosystem.
Personal Impact: Offers a seamless experience without switching apps or rebuilding context.

Edit adaptive cards inline for a faster build process [Web]

Developers can now make quick inline edits on adaptive cards without leaving their design environment, reducing turnaround times.

Details:

What changed: Action.Execute now supports inline editing for adaptive cards.

Why: Custom apps will allow for unblocked rapid iteration.

Try this:
While building a card, adjust field labels and actions inline instead of exporting and re-importing.
Why this matters:

Business Impact: Speeds up partner development cycles for faster app rollouts.
Personal Impact: Eliminates frustrating small text or layout changes.

Additional Resources:
Learn:

Allow inline editing of Adaptive Card responses

• Better security insights help you build confidently [Web]
  Makers can now see an agent’s detailed protection status and actionable recommendations in Copilot Studio.

Details: What changed: Enforce protections accurately with a richer visualization of security posture for agents.

Why: Creators are empowered to manage compliance and proactively minimize risks.

Try this:
In Copilot Studio, check the security summary for your agent and apply suggested actions to meet policy.
Why this matters:

Business Impact: Maintains compliance without slowing innovation.

Personal Impact: Gives creators peace of mind knowing their agents meet enterprise security standards.

Additional Resources:

Learn:

Agent runtime protection status

Microsoft 365 SharePoint
- Add multiple SharePoint agents in one Teams conversation [Web]

Include more than one SharePoint agent in a single Teams chat, meeting, or channel. Teams and SharePoint now work together better for smarter collaboration.

Roadmap ID: 481136
Details:
What changed: Teams supports multiple SharePoint agents in a single group chat or channel.

Why: Experience richer scenarios where multiple libraries or sites provide simultaneous insights.

Try this:
In your project channel, add two different SharePoint agents to get instant answers about separate libraries.
Why this matters:

Business Impact: Keeps all content conversation in context, reducing silos across different sites.

Personal Impact: Stay focused without the need to use multiple chats or apps to gather information.

Additional Resources:

Support:

Share an agent from SharePoint in Teams

Viva Glint

• Multilingual support in Copilot for Viva Glint [Web]

Copilot in Viva Glint now understands and responds in multiple languages, helping employees interact in their preferred language.

Roadmap ID: 508531
Details:
What changed: Copilot for Viva Glint detects the language of a user’s input and responds in that same language.

Why: Global teams often face challenges when a tool’s language support is limited. This update improves accessibility and usability, enabling employees to share feedback or gain insights without language barriers.

Try this:

Type a prompt in your preferred language within Viva Glint Copilot.
Review the response to confirm it matches the language you used.
Share this experience with multilingual teams to streamline feedback processes.
Why it Matters:

Business Impact: Enhances inclusivity and compliance, making it easier to manage employee feedback across multiple regions.

Personal Impact: Saves time and reduces friction for employees who can now interact with Copilot in the language they’re most comfortable with.