Microsoft 365 Roadmap

OneDrive
Sync Support for up to 1 million items on Windows

Feature details and release plans from a build snapshot of Microsoft's official roadmap feed.

All Microsoft 365 updates
Product
OneDrive
Release status
In development
RSS publication

Feature overview

OneDrive Sync supports syncing up to 1 million items on Windows devices, helping teams manage large document libraries and shared content at scale without compromising access across devices. This preview requires the Insiders ring and that devices meet minimum hardware and configuration requirements. Devices that don't meet these requirements continue to sync at the existing 300,000-item supported limit with no disruption.

Expected release date

December CY2026
Preview date: April CY2026

Source: Microsoft 365 Roadmap RSS (build snapshot) Feature ID: 560549

RSS snapshot built . Refreshed on rebuild and deployment.

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