<p>It covers the differences between two published revisions of your model, element by element. It is not a promise that every field condition is captured, because it compares what was published.</p> <p>When you publish from Revit or Navisworks, BidLight saves a versioned snapshot with its own files, author and milestone. Pick any two snapshots and it lists what moved, sorted into categories such as structural, MEP, envelope and interior. You review the changes and decide what needs an issue, instead of searching for them by hand.</p> <ul><li><strong>What it shows:</strong> added, removed and changed elements between revisions.</li><li><strong>What it does not do:</strong> it does not replace site observation or run automated clash detection. It tracks model changes between revisions, pinned to the elements.</li><li><strong>What happens next:</strong> each issue carries the sheet and revision, has an owner and closes only with proof.</li></ul> <p>Publish regularly and compare each time, and you see what changed in about 15 minutes.</p>