Some users may encounter crashes in the classic Outlook desktop app when right clicking in an email message

Title: Some users may encounter crashes in the classic Outlook desktop app when right clicking in an email message User impact: Users may have encountered crashes in the classic Outlook desktop app when right clicking in an email message. More info: This issue affected users on Current Channel or Monthly Enterprise Channel version 2605. While the team focused on remediation, users with access to the new Outlook desktop app or Outlook on the web could use these apps to bypass the impact. As an alternative option to more quickly self-mitigate and allow use of the classic Outlook app, we recommended that users could update to version 2606, which wasn't affected by this problem. Final status: Following our completed change reversion, our internal service telemetry validated that the impact has been remediated. Any user that continues to experience crashes in classic Outlook should restart their device so our changes can be applied. Scope of impact: Some users on the Current Channel or Monthly Enterprise Channel version 2605 that right-clicked email messages in classic Outlook desktop may have been impacted. Start time: Monday, June 29, 2026, at 11:59 PM UTC End time: Wednesday, July 1, 2026, at 3:54 PM UTC Root cause: A recent update to improve accessibility introduced an impacting code error. Next steps: -We're further analyzing the offending accessibility change and the code error it introduced so we can improve our pre-deployment testing and validation processes. This is the final update for the event.

Title: Some users may encounter crashes in the classic Outlook desktop app when right clicking in an email message User impact: Users may encounter crashes in the classic Outlook desktop app when right clicking in an email message. More info: This issue affects users on Current Channel or Monthly Enterprise Channel version 2605. While we're focused on remediation, users with access to the new Outlook desktop app or Outlook on the web may use these apps to bypass the impact. As an alternative option to more quickly self-mitigate and allow use of the classic Outlook app, users may update to version 2606, which isn't affected by this problem. Current status: We've initiated a reversion of the impacting change and are monitoring as it progresses. We expect this to complete by the next scheduled update. Scope of impact: Some users on Current Channel or Monthly Enterprise Channel version 2605 right clicking in classic Outlook desktop email messages may be impacted. Start time: Wednesday, June 17, 2026, at 12:00 PM UTC Root cause: A recent accessibility change contains a code error, resulting in impact. Next update by: Wednesday, July 1, 2026, at 10:30 PM UTC

Title: Some users may encounter crashes in the Outlook desktop app when right clicking in an email message User impact: Users may encounter crashes in the Outlook desktop app when right clicking in an email message. Current status: Our investigation has identified a recent accessibility change contains a code error, resulting in impact. We're in the process of determining the best path to remediate impact and will provide a remediation timeline when available. Scope of impact: Some users right clicking in Outlook desktop email messages may be impacted. Next update by: Wednesday, July 1, 2026, at 1:00 AM UTC

Title: Some users may encounter crashes in the Outlook desktop app when right clicking in an email message User impact: Users may encounter crashes in the Outlook desktop app when right clicking in an email message. Current status: We're reviewing reported impact scenarios and attempting to internally reproduce impact, in order to isolate the root cause and develop a remediation plan. Scope of impact: Some users right clicking in Outlook desktop email messages are impacted. Next update by: Tuesday, June 30, 2026, at 8:30 PM UTC

Title: Some users may encounter crashes in the Outlook desktop app when right clicking in an email message User impact: Users may encounter crashes in the Outlook desktop app when right clicking in an email message. Current status: We're reviewing support provided information to determine our next troubleshooting steps. Scope of impact: Some users right clicking in Outlook desktop email messages are impacted. Next update by: Tuesday, June 30, 2026, at 1:30 PM UTC