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December 2023 - Microsoft 365 US Public Sector Roadmap Newsletter

Microsoft Public Sector

Starting April 2nd, 2026, Microsoft will remove the ability use SharePoint Add-Ins for existing tenants. Action: Review and assess impact How this will affect your organization If your organization still uses SharePoint Add-Ins, they will no longer function after April 2nd, 2026.

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October 2023 - Microsoft 365 US Public Sector Roadmap Newsletter

Microsoft Public Sector

When this will happen: Note: The date, September 30th, 2025, is an update from the previously communicated retirement date of September 30th, 2024. Today, we are announcing that on October 1, 2026, we will start blocking EWS requests from non-Microsoft apps to Exchange Online.