OneDrive Sync supports syncing up to 1 million items on macOS 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.
Dates
Preview Oct 2026 · GA Jun 2027
Apps
OneDrive
Type
End-user app
Message Center
MC1477187
Platforms
Mac
Release phases
General Availability, Preview
Cloud instances
Worldwide (Standard Multi-Tenant), GCC, GCC High, DoD