M365 Message Center

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04.08.2026

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Exchange Online

Updated August 4, 2026: We have updated the timeline. Thank you for your patience. [Introduction] We’re improving the RSVP experience in Outlook Mobile by visually highlighting the response a user has selected (Yes, Maybe, or No). This makes it easier for users to quickly see how they’ve responded to a meeting invitation.[When this will happen:] General Availability (Worldwide, GCC, GCC High): Rollout begins mid-September 2026 (previously August) and is expected to complete by mid-October 2026 (previously end of August).[How this affects your organization:]Who is affected: All users who access Outlook Mobile on iOS or Android Applies to Worldwide, GCC, and GCC High tenants What will happen: The selected RSVP option (Yes, Maybe, or No) will be visually highlighted Users can quickly confirm how they responded to a meeting invitation and edit as needed The feature is enabled by default No c

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03.08.2026

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Microsoft Copilot (Microsoft 365) · Microsoft 365 Copilot Chat

Updated August 3, 2026: We have updated the timeline and content. Thank you for your patience. [Introduction]We’re introducing a new co-branding capability that will allow organizations to display a branded footer at the bottom of the Chat screen in the Microsoft 365 Copilot app. This update will enable admins to add their organization’s logo to their users’ Microsoft 365 Copilot app, helping users confirm they are using their trusted, work-managed Copilot experience.This message is associated with Microsoft 365 Roadmap ID 555852.[When this will happen]General Availability (Worldwide): We will begin rolling out August 2026 (previously mid-July) and is expected to complete by mid-September 2026 (previously end of July).[How this will affect your organization]Who is affectedAll Microsoft 365 tenants using the Microsoft 365 Copilot app.What will happenAdmins will be able to upload a logo in

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03.08.2026

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Microsoft Teams

Updated August 3, 2026: This feature was temporarily rolled back, and we have updated the timeline. Thank you for your patience. [Introduction]Microsoft Teams is introducing two new system chat sections called Muted chats and Meeting chats. These sections allow users to organize their chat and channels list by grouping muted conversations and meeting chats into dedicated sections that users can turn on or off. The new Meeting chats section will replace the Meeting chats filter, that was previously available at the top of the chat and channel list. This message is associated with Microsoft 365 Roadmap ID 559605.[When this will happen]General Availability (Worldwide, GCC, GCC High, DoD): Rollout begins in early September 2026 (previously mid-August) and is expected to complete by end of October 2026 (previously end of September).[How this affects your organization]Who is affectedAll Micros

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29.07.2026

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Microsoft Teams

Updated July 29, 2026: We have updated the timeline. Thank you for your patience. [Introduction]We’re introducing ad-hoc room reservation directly from the Microsoft Teams Rooms on Windows console. This update enables users to reserve an available room on the spot without relying on a personal device or hallway panel, supporting quick, spontaneous meetings and helping reduce scheduling conflicts. This feature requires a Teams Rooms Pro license. This message is associated with Microsoft 365 Roadmap ID 548648.[When this will happen]General Availability (Worldwide, GCC): We will begin rolling out in early July 2026 (previously early June) and expect to complete by mid-July 2026 (previously late June).General Availability (GCC High): We will begin rolling out late in end of August 2026 (previously mid-July) and expect to complete by early September 2026 (previously late July).General Availab

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29.07.2026

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Windows

Starting with the September 2025 Windows preview non-security update, a significant leap forward in wireless networking reaches Windows 11, version 24H2 and later. Windows 11 has already supported Wi-Fi 7 for consumer access points since 2024. Now, your organization can also benefit from better speed, high throughput, improved reliability, and enhanced security for modern enterprise environments that support Wi-Fi 7 enterprise access points. When will this happen: Wi-Fi 7 is generally available to enterprises starting with the September 2025 Windows preview non-security update. How this will affect your organization: Wi-Fi 7 for enterprise is designed to address evolving security needs while helping support reliable connectivity in high-density, high-throughput scenarios. Here’s what helps make Wi-Fi 7 a game-changer for enterprises: Required WPA3-Enterprise authentication Seamless roami

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29.07.2026

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SharePoint Online

Updated January 29, 2026: We are updating this post as a reminder. Upcoming SharePoint Online changes may impact your organization. Please review the below.We are implementing the following changes to custom scripting and classic publishing in SharePoint Online.1. Disablement of custom scriptingCustom scripting will be disabled by default (setting DenyAddAndCustomizePages to 1 or $true) for sites created with the following templates:BLANKINTERNETCONTAINER#0 = Classic Publishing Portal Site CMSPUBLISHING#0 = Classic Publishing Site BLANKINTERNET#0 = Classic Publishing Site BlankCSPCONTAINER#0 = SharePoint Embedded SiteNOTE: Existing classic publishing sites created with the templates listed above will have custom scripting disabled by default. Disabling custom scripting does not affect the execution of scripts that have already been added to a site or page.Refer to this documentation to l