Microsoft Teams | RemoteApp support for Azure Virtual Desktop and Windows 365 with SlimCore optimization

Microsoft Teams will transition RemoteApp on Azure Virtual Desktop and Windows 365 to a new SlimCore media engine by mid-May 2026, improving audio/video performance and simplifying updates. No admin action is needed, but "Give and Take Control" is currently unsupported. Ensure minimum app versions are met.

[Introduction]

Microsoft Teams now supports a new Virtual Desktop Infrastructure optimization for RemoteApp scenarios on Azure Virtual Desktop and Windows 365. This update introduces a SlimCore-based media engine that replaces the legacy WebRTC-based optimization. The new optimization improves audio and video performance, reliability, and security, and simplifies ongoing support by enabling media engine updates without frequent upgrades to the VDI infrastructure or client.

[When this will happen]

• Targeted Release: We will begin rolling out in early April 2026 and expect to complete by mid-April 2026.
• General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out in mid-April 2026 and expect to complete by early May 2026.

[How this affects your organization]

Who is affected

Organizations using Microsoft Teams as a RemoteApp on Azure Virtual Desktop or Windows 365 from Windows endpoints

What will happen

• Teams users running in RemoteApp will automatically transition to the new SlimCore optimization: 

  

• Audio and video performance and reliability are improved compared to the legacy WebRTC optimization.
• Media engine updates no longer require frequent upgrades to the VDI infrastructure or client.
• Give and Take Control is not supported at this time.

[What you can do to prepare]

• No admin action is required for the transition.
• Ensure your environment meets the minimum requirements:
  • Windows App for Windows version 2.0.964.0 or later
  • Microsoft Teams version 26043.2016.4478.2773 or later
• Consider notifying helpdesk and support teams about the change and the current limitation with Give and Take Control.
• Review the Teams VDI documentation to understand supported scenarios and limitations.

Learn more: New VDI solution for Teams | Microsoft Teams | Microsoft Learn

[Compliance considerations]

No compliance considerations identified. Review as appropriate for your organization.