check before: 2026-06-01
Product:
Stream, Teams, Windows
Platform:
Mac, Online, US Instances, Web, Windows Desktop, World tenant
Status:
In development
Change type:
New feature, Updated message, User impact
Links:
Details:
Summary:
Microsoft Teams will support Secure Reliable Transport (SRT) for town halls and live events starting June 2026, offering improved streaming reliability and backup with automatic failover alongside existing RTMP. No user impact; admins must enable SRT in meeting policies and update event production accordingly.
Details:
Updated June 9, 2026: We have updated the timeline. Thank you for your patience.
[Introduction]
Microsoft Teams town halls and live events will soon support Secure Reliable Transport (SRT), a secure and resilient video streaming protocol designed to deliver high-quality, low-latency video over the public internet. SRT will be available alongside Real-Time Messaging Protocol (RTMP), the existing inbound streaming protocol commonly used with external encoders. Adding SRT provides event organizers with improved reliability and flexibility, including support for backup streams with automatic failover, to help ensure smoother delivery for high-visibility broadcast events without increasing setup complexity.
This message applies to Teams for Windows desktop and Teams for Mac desktop and is associated with Roadmap ID 554931.
[When this will happen:]
Targeted Release: Rollout begins in early June 2026 and is expected to complete by mid-June 2026
General Availability (Worldwide, GCC): Rollout begins in late June 2026 (previously mid-June) and is expected to complete by end of June 2026
Change Category:
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Scope:
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Release Phase:
General Availability, Targeted Release
Created:
2026-05-27
updated:
2026-06-10
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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linked item details
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summary for non-techies**
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Direct effects for Operations**
Transition to Secure Reliable Transport (SRT)
Event producers may face challenges in adapting existing workflows to incorporate SRT, potentially leading to delays in event preparation and execution if not properly prepared.
- roles: Event Producers, IT Administrators
- references: https://learn.microsoft.com/microsoftteams/meetings-rtmp-in, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=554931
Backup Stream Configuration
Without proper preparation, event producers may overlook the need to configure backup streams, risking event reliability during high-visibility broadcasts.
- roles: Event Producers, IT Administrators
- references: https://learn.microsoft.com/microsoftteams/meetings-rtmp-in, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=554931
Configutation Options**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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change history
| Date | Property | old | new |
| 2026-06-10 | MC Messages | Updated June 1, 2026: We have updated the content in 'what you can do to prepare'. Thank you for your patience.
[Introduction] Microsoft Teams town halls and live events will soon support Secure Reliable Transport (SRT), a secure and resilient video streaming protocol designed to deliver high-quality, low-latency video over the public internet. SRT will be available alongside Real-Time Messaging Protocol (RTMP), the existing inbound streaming protocol commonly used with external encoders. Adding SRT provides event organizers with improved reliability and flexibility, including support for backup streams with automatic failover, to help ensure smoother delivery for high-visibility broadcast events without increasing setup complexity. This message applies to Teams for Windows desktop and Teams for Mac desktop and is associated with Roadmap ID 554931. [When this will happen:] Targeted Release: Rollout begins in early June 2026 and is expected to complete by mid-June 2026 General Availability (Worldwide, GCC): Rollout begins in mid-June 2026 and is expected to complete by late June 2026 | Updated June 9, 2026: We have updated the timeline. Thank you for your patience.
[Introduction] Microsoft Teams town halls and live events will soon support Secure Reliable Transport (SRT), a secure and resilient video streaming protocol designed to deliver high-quality, low-latency video over the public internet. SRT will be available alongside Real-Time Messaging Protocol (RTMP), the existing inbound streaming protocol commonly used with external encoders. Adding SRT provides event organizers with improved reliability and flexibility, including support for backup streams with automatic failover, to help ensure smoother delivery for high-visibility broadcast events without increasing setup complexity. This message applies to Teams for Windows desktop and Teams for Mac desktop and is associated with Roadmap ID 554931. [When this will happen:] Targeted Release: Rollout begins in early June 2026 and is expected to complete by mid-June 2026 General Availability (Worldwide, GCC): Rollout begins in late June 2026 (previously mid-June) and is expected to complete by end of June 2026 |
| 2026-06-10 | MC Last Updated | 06/02/2026 01:07:24 | 2026-06-09T17:59:07Z |
| 2026-06-10 | MC Summary | Microsoft Teams will support Secure Reliable Transport (SRT) for town halls and live events starting June 2026, offering improved video streaming reliability and backup streams with automatic failover alongside existing RTMP. No user impact; admins must enable SRT in meeting policies and prepare encoder and network settings. | Microsoft Teams will support Secure Reliable Transport (SRT) for town halls and live events starting June 2026, offering improved streaming reliability and backup with automatic failover alongside existing RTMP. No user impact; admins must enable SRT in meeting policies and update event production accordingly. |
| 2026-06-02 | MC prepare | .
Review encoder capabilities to confirm SRT support Ensure you have access to port 49891 and the domain *.rtmpingest.mcr.teams.cloud.microsoft. Update internal event-production documentation to include SRT as a supported option Inform event production teams that a backup stream with automatic failover is now available for Teams town halls Learn more: Manage RTMP-In for Teams meetings, webinars, and town halls - Microsoft Teams | Microsoft Learn (will be updated before Targeted Release begins) [Compliance considerations:] No compliance considerations identified, review as appropriate for your organization. https://learn.microsoft.com/microsoftteams/meetings-rtmp-in https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=554931 | .
Review encoder capabilities to confirm SRT support Ensure you have access to port 49891 and the domain *.rtmpingest.mcr.teams.cloud.microsoft. Update internal event-production documentation to include SRT as a supported option Inform event production teams that a backup stream with automatic failover is now available for Teams town halls We've introduced an additional policy control for SRT-In in Teams Events. To enable users to access and use SRT-In, IT admins must explicitly allow the "SRT" setting in the AllowedStreamingMediaInput parameter within CsTeamsMeetingPolicy. Learn more: Manage RTMP-In for Teams meetings, webinars, and town halls - Microsoft Teams | Microsoft Learn (will be updated before Targeted Release begins) [Compliance considerations:] No compliance considerations identified, review as appropriate for your organization. https://learn.microsoft.com/microsoftteams/meetings-rtmp-in https://learn.microsoft.com/powershell/module/microsoftteams/set-csteamsmeetingpolicy?view=teams-ps https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=554931 |
| 2026-06-02 | MC Summary | Microsoft Teams will support Secure Reliable Transport (SRT) for town halls and live events starting June 2026, offering a secure, low-latency alternative to RTMP with backup stream failover. This affects event producers using external encoders, requires no user impact or admin changes, and improves streaming reliability. | Microsoft Teams will support Secure Reliable Transport (SRT) for town halls and live events starting June 2026, offering improved video streaming reliability and backup streams with automatic failover alongside existing RTMP. No user impact; admins must enable SRT in meeting policies and prepare encoder and network settings. |
| 2026-06-02 | MC Last Updated | 05/28/2026 00:54:28 | 2026-06-02T01:07:24Z |
| 2026-06-02 | MC Messages | [Introduction]
Microsoft Teams town halls and live events will soon support Secure Reliable Transport (SRT), a secure and resilient video streaming protocol designed to deliver high-quality, low-latency video over the public internet. SRT will be available alongside Real-Time Messaging Protocol (RTMP), the existing inbound streaming protocol commonly used with external encoders. Adding SRT provides event organizers with improved reliability and flexibility, including support for backup streams with automatic failover, to help ensure smoother delivery for high-visibility broadcast events without increasing setup complexity. This message applies to Teams for Windows desktop and Teams for Mac desktop and is associated with Roadmap ID 554931. [When this will happen:] Targeted Release: Rollout begins in early June 2026 and is expected to complete by mid-June 2026 General Availability (Worldwide, GCC): Rollout begins in mid-June 2026 and is expected to complete by late June 2026 | Updated June 1, 2026: We have updated the content in 'what you can do to prepare'. Thank you for your patience.
[Introduction] Microsoft Teams town halls and live events will soon support Secure Reliable Transport (SRT), a secure and resilient video streaming protocol designed to deliver high-quality, low-latency video over the public internet. SRT will be available alongside Real-Time Messaging Protocol (RTMP), the existing inbound streaming protocol commonly used with external encoders. Adding SRT provides event organizers with improved reliability and flexibility, including support for backup streams with automatic failover, to help ensure smoother delivery for high-visibility broadcast events without increasing setup complexity. This message applies to Teams for Windows desktop and Teams for Mac desktop and is associated with Roadmap ID 554931. [When this will happen:] Targeted Release: Rollout begins in early June 2026 and is expected to complete by mid-June 2026 General Availability (Worldwide, GCC): Rollout begins in mid-June 2026 and is expected to complete by late June 2026 |
| 2026-06-02 | MC Title | Microsoft Teams: Secure Reliable Transport (SRT) support for Teams meetings and events | (Updated) Microsoft Teams: Secure Reliable Transport (SRT) support for Teams meetings and events |
| 2026-06-02 | MC MessageTagNames | New feature, User impact | Updated message, New feature, User impact |
| 2026-05-28 | MC prepare | .
Review encoder capabilities to confirm SRT support Ensure you have access to port 49891 and the domain *.rtmpingest.mcr.teams.cloud.microsoft.com. Update internal event-production documentation to include SRT as a supported option Inform event production teams that a backup stream with automatic failover is now available for Teams town halls Learn more: Manage RTMP-In for Teams meetings, webinars, and town halls - Microsoft Teams | Microsoft Learn (will be updated before Targeted Release begins) [Compliance considerations:] No compliance considerations identified, review as appropriate for your organization. https://learn.microsoft.com/microsoftteams/meetings-rtmp-in https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=554931 | .
Review encoder capabilities to confirm SRT support Ensure you have access to port 49891 and the domain *.rtmpingest.mcr.teams.cloud.microsoft. Update internal event-production documentation to include SRT as a supported option Inform event production teams that a backup stream with automatic failover is now available for Teams town halls Learn more: Manage RTMP-In for Teams meetings, webinars, and town halls - Microsoft Teams | Microsoft Learn (will be updated before Targeted Release begins) [Compliance considerations:] No compliance considerations identified, review as appropriate for your organization. https://learn.microsoft.com/microsoftteams/meetings-rtmp-in https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=554931 |
| 2026-05-28 | MC Last Updated | 05/27/2026 00:17:12 | 2026-05-28T00:54:28Z |
Last updated 1 week ago ago
