MC1269211 – M365 Change Digest

One-line summary

Outlook Mobile will highlight users' RSVP responses (Yes, Maybe, No) for meeting invites, enhancing visual clarity. Rollout starts mid-September 2026, enabled by default.

Similar updates

Details

Summary

Outlook Mobile will highlight users' selected RSVP (Yes, Maybe, No) for meetings, improving visibility. Rollout starts mid-September 2026 and completes by mid-October 2026, affecting all iOS and Android users worldwide, GCC, and GCC High tenants. No admin action needed; feature enabled by default.

Body (from Message Center)

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

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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    "ai_action_required_by": "2026-04-30T00:00:00Z",
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    ],
    "ai_master_tags": [
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    "ai_model": "gpt-4.1",
    "ai_summary": "Outlook Mobile will highlight users\u0027 RSVP responses (Yes, Maybe, No) for meeting invites, enhancing visual clarity. Rollout starts mid-September 2026, enabled by default.",
    "ai_topics": [
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      "Outlook"
    ],
    "category": "stayInformed",
    "details_map": {
      "Summary": "Outlook Mobile will highlight users\u0027 selected RSVP (Yes, Maybe, No) for meetings, improving visibility. Rollout starts mid-September 2026 and completes by mid-October 2026, affecting all iOS and Android users worldwide, GCC, and GCC High tenants. No admin action needed; feature enabled by default."
    },
    "id": "MC1269211",
    "importance": 3,
    "is_major_change": false,
    "last_modified": "2026-08-04T19:04:00Z",
    "ms_products": [
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    "platforms": null,
    "roadmap_ids": [],
    "services": [
      "Exchange Online"
    ],
    "severity": "normal",
    "tags": [
      "Updated message",
      "Feature update",
      "User impact"
    ],
    "title": "(Updated) Clearer RSVP selection in Outlook Mobile"
  }
}