OpenDiskTree 1.3.2 makes repeated scans genuinely fast and keeps full scans responsive on large disks.
Highlights:
- Incremental updates now apply changes directly to the current snapshot instead of copying millions of unchanged rows.
- Unchanged directories are reused from a compact preloaded catalog.
- FSEvents changes that arrive during a scan are queued for the next update instead of forcing another full traversal.
- Large change journals automatically fall back to a clean Turbo scan when that is faster.
- Scanner progress and finalization no longer wait for SwiftUI layout work.
- On the development Mac, a 1.96-million-item full snapshot completed in 24.15 seconds in the production scanner harness; an unchanged incremental update completed in 1.66 seconds.
The downloadable app is unsigned. On first launch, macOS may require Control-click → Open. Full Disk Access is optional but required to inspect protected folders.