MC1269211 – M365 Change Digest

One-line summary

Outlook Mobile will highlight users' RSVP selection to make responses more visible; rollout starts August 2026 and completes by end of August; no admin action required.

Similar updates

Details

Summary

Outlook Mobile will visually highlight users' RSVP responses (Yes, Maybe, No) to meeting invites, improving clarity. The rollout begins August 2026 and completes by end of August. It affects all iOS and Android users, is enabled by default, requires no admin action, and does not impact other Outlook clients.

Body (from Message Center)

Updated July 10, 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 August 2026 (previously end of June) and is expected to complete by end of August 2026 (previously end of July).

[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

user settings

Users can quickly confirm how they responded to a meeting invitation and edit as needed

user settings

The feature is enabled by default
No changes to existing meeting workflows or policies
No impact to Outlook on the web or Outlook desktop clients

[What you can do to prepare:]

No admin action is required; the update will roll out automatically
Consider notifying helpdesk staff of the visual change
Update internal documentation if needed

[Compliance considerations:]

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

Raw JSON (for debugging)

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    "action_required_by": null,
    "ai_action_required_by": "2026-04-30T00:00:00Z",
    "ai_actions": [
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      "Update internal documentation if needed"
    ],
    "ai_master_tags": [
      "User",
      "Admin"
    ],
    "ai_model": "gpt-4.1",
    "ai_summary": "Outlook Mobile will highlight users\u0027 RSVP selection to make responses more visible; rollout starts August 2026 and completes by end of August; no admin action required.",
    "ai_topics": [
      "Exchange",
      "Outlook"
    ],
    "category": "stayInformed",
    "details_map": {
      "Summary": "Outlook Mobile will visually highlight users\u0027 RSVP responses (Yes, Maybe, No) to meeting invites, improving clarity. The rollout begins August 2026 and completes by end of August. It affects all iOS and Android users, is enabled by default, requires no admin action, and does not impact other Outlook clients."
    },
    "id": "MC1269211",
    "importance": 3,
    "is_major_change": false,
    "last_modified": "2026-07-10T22:09:02Z",
    "ms_products": [
      "Exchange"
    ],
    "platforms": null,
    "roadmap_ids": [],
    "services": [
      "Exchange Online"
    ],
    "severity": "normal",
    "tags": [
      "Updated message",
      "Feature update",
      "User impact"
    ],
    "title": "(Updated) Clearer RSVP selection in Outlook Mobile"
  }
}