Guide
How to Compare Two Folders
Folder comparison starts by aligning relative paths, then uses content hashes rather than timestamps alone.
Statuses
Identical paths with identical hashes are Identical. Same paths with different hashes are Modified. Unmatched paths are Left only or Right only. A content hash that moves to a different path can be flagged as a possible rename.
Why hashes matter
Timestamps can change during copies and restores without content changing. A cryptographic content hash is a stronger equality test.