[Action required] Teams application update needed for uninterrupted Copilot experiences on Teams Phone Devices

Update Teams Phone Devices to app version 1449/1.0.94.2026047602 by April 24, 2026, to ensure reliable Copilot performance during calls. This affects Teams Certified Phone Devices only and improves existing functionality without policy changes. Verify updates via Teams Admin Center and prepare support teams accordingly.

[Introduction]

To ensure continued reliability of Copilot experiences on Microsoft Teams Phone Devices, Microsoft recommends updating Teams Phone Devices to app version 1449/1.0.94.2026047602 before April 24, 2026. Devices running earlier versions may experience unreliable Copilot behavior during call transfers and when using in-call Copilot on Teams Certified Phone Devices. This update helps maintain consistent Copilot performance for users during calling workflows.

[When this will happen:]

General Availability (Worldwide): Rollout will begin in late April 2026 and is expected to complete by late April 2026.

[How this affects your organization:]

Who is affected:

• Microsoft Teams administrators managing Teams Phone Device update policies
• Users utilizing Copilot during calls on Teams Certified Phone Devices

What will happen:

• This change applies to Teams Certified Phone Devices only.
• Devices running versions prior to 1449/1.0.94.2026047602 after April 24, 2026, may experience:
  • Unreliable Copilot behavior during call transfers
  • Inconsistent in-call Copilot experiences
• No changes to existing Teams Phone device policies are required.
• This update does not introduce new Copilot functionality; it improves reliability of existing Copilot experiences during calls.

[What you can do to prepare:]

• Update Teams Phone Devices to version 1449/1.0.94.2026047602 or later.
• Verify device app versions in Teams Admin Center > Teams Devices > Phones.
• If auto-update is enabled, confirm devices are running version 1449/1.0.94.2026047602 or later.
• Inform helpdesk teams to check device app version first when troubleshooting Copilot-related calling issues after April 24, 2026.
• Update internal support documentation for Teams Phone device troubleshooting guidance.

[Compliance considerations:]

No compliance considerations identified, review as appropriate for your organization.