check before: 2024-09-01
Product:
Teams
Platform:
US Instances, Web, World tenant
Status:
Rolling out
Change type:
Feature update, Updated message, User impact
Links:
Details:
Summary:
The latest Teams meeting experiences, including performance improvements and updated UI, will be available on the web for Safari and Firefox browsers for anonymous users. Rollout begins in September 2024 and completes by October 2024 for worldwide users, and by June 2025 for GCC, GCC High, and DoD. Update internal documentation accordingly.
Details:
Updated June 2, 2025: We have updated the timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only)
This message is associated with Microsoft 365 Roadmap ID 329253
[When this will happen:]
Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August).
GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-June 2025 (previously mid-April).
Change Category:
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Scope:
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Release Phase:
General Availability
Created:
2024-01-11
updated:
2025-06-03
Public Preview Start Date
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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**
Microsoft Teams is enhancing its web-based meeting experience for Safari and Firefox users joining as guests, with performance improvements, a standardized user interface, and phased rollout completion expected by October 2024 for general users and June 2025 for government and defense sectors.
Direct effects for Operations**
Performance Issues
If the change is implemented without preparation, users may experience performance issues such as slow loading times or unresponsive interfaces when joining meetings via Safari and Firefox, leading to frustration and decreased productivity.
- roles: End Users, IT Support
- references: https://www.microsoft.com/microsoft-365/roadmap?rtc=1%26filters=&searchterms=329253
User Experience Discrepancies
Without proper preparation, users may encounter inconsistencies in the user interface between different browsers, which can lead to confusion and hinder effective collaboration during meetings.
- roles: End Users, Project Managers
- references: https://www.microsoft.com/microsoft-365/roadmap?rtc=1%26filters=&searchterms=329253
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 |
| 2025-06-03 | MC Last Updated | 03/28/2025 19:49:40 | 2025-06-02T16:45:08Z |
| 2025-06-03 | MC Messages | Updated March 28, 2025: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-April 2025 (previously mid-March). | Updated June 2, 2025: We have updated the timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-June 2025 (previously mid-April). |
| 2025-06-03 | MC End Time | 06/02/2025 09:00:00 | 2025-08-25T09:00:00Z |
| 2025-06-03 | MC Summary | Teams meeting experiences on the web for Safari and Firefox (for guests) will be improved with performance enhancements, a refreshed pre-join, updated meeting stage, and toolbar. Rollout begins early September 2024 and completes by early October 2024 worldwide, and mid-October 2024 to mid-April 2025 for GCC, GCC High, and DoD. | The latest Teams meeting experiences, including performance improvements and updated UI, will be available on the web for Safari and Firefox browsers for anonymous users. Rollout begins in September 2024 and completes by October 2024 for worldwide users, and by June 2025 for GCC, GCC High, and DoD. Update internal documentation accordingly. |
| 2025-03-29 | MC Last Updated | 02/28/2025 20:39:13 | 2025-03-28T19:49:40Z |
| 2025-03-29 | MC Messages | Updated February 28, 2025: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-March 2025 (previously mid-February). | Updated March 28, 2025: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-April 2025 (previously mid-March). |
| 2025-03-29 | MC End Time | 04/28/2025 09:00:00 | 2025-06-02T09:00:00Z |
| 2025-03-29 | MC Summary | Teams on the web for Safari and Firefox will receive performance improvements, refreshed pre-join, updated meeting stage, and toolbar for anonymous users. Rollout starts early September 2024 and completes by mid-March 2025. Update internal documentation to inform users. Associated with Microsoft 365 Roadmap ID 329253. | Teams meeting experiences on the web for Safari and Firefox (for guests) will be improved with performance enhancements, a refreshed pre-join, updated meeting stage, and toolbar. Rollout begins early September 2024 and completes by early October 2024 worldwide, and mid-October 2024 to mid-April 2025 for GCC, GCC High, and DoD. |
| 2025-03-01 | MC Last Updated | 01/24/2025 23:46:19 | 2025-02-28T20:39:13Z |
| 2025-03-01 | MC Messages | Updated January 24, 2025: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-February 2025 (previously mid-January). | Updated February 28, 2025: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-March 2025 (previously mid-February). |
| 2025-03-01 | MC End Time | 03/24/2025 08:00:00 | 2025-04-28T09:00:00Z |
| 2025-03-01 | MC Summary | Teams on the web will introduce improved meeting experiences for Safari and Firefox users, particularly for guests, with a refreshed interface and performance enhancements. The rollout begins in September 2024 and completes by February 2025. Organizations should update their documentation to inform users of these changes. Roadmap ID: 329253. | Teams on the web for Safari and Firefox will receive performance improvements, refreshed pre-join, updated meeting stage, and toolbar for anonymous users. Rollout starts early September 2024 and completes by mid-March 2025. Update internal documentation to inform users. Associated with Microsoft 365 Roadmap ID 329253. |
| 2025-01-25 | MC Last Updated | 09/26/2024 01:10:41 | 2025-01-24T23:46:19Z |
| 2025-01-25 | MC Messages | Updated September 25, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-January 2024 (previously early November). | Updated January 24, 2025: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-February 2025 (previously mid-January). |
| 2025-01-25 | MC End Time | 02/24/2025 08:00:00 | 2025-03-24T08:00:00Z |
| 2025-01-25 | MC Summary | Teams on the web will introduce improved meeting experiences for Safari and Firefox users, particularly for guests, with a refreshed interface and performance enhancements. The rollout begins in September 2024 and completes by January 2025. Organizations should update their documentation to inform users of these changes. Roadmap ID: 329253. | Teams on the web will introduce improved meeting experiences for Safari and Firefox users, particularly for guests, with a refreshed interface and performance enhancements. The rollout begins in September 2024 and completes by February 2025. Organizations should update their documentation to inform users of these changes. Roadmap ID: 329253. |
| 2024-09-26 | MC Last Updated | 07/26/2024 20:06:21 | 2024-09-26T01:10:41Z |
| 2024-09-26 | MC Messages | Updated July 26, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by early November 2024 (previously mid-October). | Updated September 25, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by mid-January 2024 (previously early November). |
| 2024-09-26 | MC End Time | 12/16/2024 08:00:00 | 2025-02-24T08:00:00Z |
| 2024-09-26 | MC Summary | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting early September 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. | Teams on the web will introduce improved meeting experiences for Safari and Firefox users, particularly for guests, with a refreshed interface and performance enhancements. The rollout begins in September 2024 and completes by January 2025. Organizations should update their documentation to inform users of these changes. Roadmap ID: 329253. |
| 2024-07-27 | MC Last Updated | 06/28/2024 22:27:07 | 2024-07-26T20:06:21Z |
| 2024-07-27 | MC Messages | Updated June 28, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out mid-August 2024 (previously early July) and expect to complete by late August 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-September 2024 (previously early August) and expect to complete by mid-October 2024 (previously mid-August). | Updated July 26, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early September 2024 (previously mid-August) and expect to complete by early October 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-October 2024 (previously mid-September) and expect to complete by early November 2024 (previously mid-October). |
| 2024-07-27 | MC End Time | 11/18/2024 08:00:00 | 2024-12-16T08:00:00Z |
| 2024-07-27 | MC Summary | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting mid-August 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting early September 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. |
| 2024-06-29 | MC Last Updated | 05/29/2024 22:51:44 | 2024-06-28T22:27:07Z |
| 2024-06-29 | MC Messages | Updated May 29, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early July 2024 (previously mid-June) and expect to complete by late July 2024 (previously late June). GCC, GCC High and DoD: We will begin rolling out early August 2024 and expect to complete by mid-August 2024. | Updated June 28, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out mid-August 2024 (previously early July) and expect to complete by late August 2024 (previously late August). GCC, GCC High and DoD: We will begin rolling out mid-September 2024 (previously early August) and expect to complete by mid-October 2024 (previously mid-August). |
| 2024-06-29 | MC End Time | 09/30/2024 09:00:00 | 2024-11-18T08:00:00Z |
| 2024-06-29 | MC Summary | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting early July 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting mid-August 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. |
| 2024-05-30 | MC Last Updated | 04/26/2024 00:01:53 | 2024-05-29T22:51:44Z |
| 2024-05-30 | MC Messages | Updated April 25, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] All Environments: We will begin rolling out mid-June 2024 (previously late April) and expect to complete by late June 2024 (previously late May). | Updated May 29, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Worldwide: We will begin rolling out early July 2024 (previously mid-June) and expect to complete by late July 2024 (previously late June). GCC, GCC High and DoD: We will begin rolling out early August 2024 and expect to complete by mid-August 2024. |
| 2024-05-30 | MC End Time | 08/05/2024 09:00:00 | 2024-09-30T09:00:00Z |
| 2024-05-30 | MC Summary | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting mid-June 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting early July 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. |
| 2024-04-26 | MC Last Updated | 04/19/2024 21:20:44 | 2024-04-26T00:01:53Z |
| 2024-04-26 | MC Messages | Updated April 19, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] All Environments: We will begin rolling out late April 2024 (previously early April) and expect to complete by late May 2024 (previously early May). | Updated April 25, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] All Environments: We will begin rolling out mid-June 2024 (previously late April) and expect to complete by late June 2024 (previously late May). |
| 2024-04-26 | MC End Time | 07/01/2024 09:00:00 | 2024-08-05T09:00:00Z |
| 2024-04-26 | MC Summary | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting mid-May 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting mid-June 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. |
| 2024-04-20 | MC Messages | Updated January 24, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] All Environments: We will begin rolling out early April 2024 (previously early February) and expect to complete by early May 2024 (previously late February). | Updated April 19, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] All Environments: We will begin rolling out late April 2024 (previously early April) and expect to complete by late May 2024 (previously early May). |
| 2024-04-20 | MC Title | Microsoft Teams: Latest meeting experiences with performance improvements on web for Safari and Firefox (for guests) | (Updated) Teams: Latest meeting experiences with performance improvements on web for Safari and Firefox (for guests) |
| 2024-04-20 | MC End Time | 06/10/2024 09:00:00 | 2024-07-01T09:00:00Z |
| 2024-04-20 | MC Last Updated | 01/24/2024 19:39:44 | 2024-04-19T21:20:44Z |
| 2024-04-20 | MC Summary | Microsoft Teams is rolling out improved meeting experiences for web users on Safari and Firefox, including performance enhancements and a modern UI, starting mid-May 2024. The update is aimed at bettering the experience for guests and aligning the UI with Chrome. Organizations are advised to update their documentation. | |
| 2024-03-06 | MC Feature Status | 329253
All, FeatureRolloutStatusNotSupported Web, FeatureRolloutStatusNotSupported | |
| 2024-03-05 | MC Feature Status | 329253
All, FeatureRolloutStatusNotSupported Web, FeatureRolloutStatusNotSupported | |
| 2024-01-25 | MC Messages | The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only)
This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] Standard Release: We will begin rolling out early February 2024 and expect to complete by late February 2024. | Updated January 24, 2024: We have updated the rollout timeline below. Thank you for your patience.
The latest Teams meeting experiences will be available for Teams on the web in Safari and Firefox browsers - including performance improvements, refreshed pre-join, updated meeting stage, and the updated meeting toolbar. (for anonymous join only) This message is associated with Microsoft 365 Roadmap ID 329253 [When this will happen:] All Environments: We will begin rolling out early April 2024 (previously early February) and expect to complete by early May 2024 (previously late February). |
| 2024-01-25 | MC Platforms | Web | |
| 2024-01-25 | MC Last Updated | 01/10/2024 23:59:11 | 2024-01-24T19:39:44Z |
| 2024-01-25 | MC MessageTagNames | Feature update, User impact | Updated message, Feature update, User impact |
| 2024-01-25 | MC End Time | 04/01/2024 09:00:00 | 2024-06-10T09:00:00Z |
Last updated 2 weeks ago
