What happens if I upload a file with the same name twice?

Q: What happens if I upload a file with the same name twice?

Every upload becomes its own object with its own cbo_ id, so uploading app.zip twice gives you two objects. The earlier one isn't overwritten. For zips, the newer one builds the current code tree; the older tree stays reachable by its ref. Both count toward the bucket's storage. Delete the older object if you don't need it. Public links point to a specific object, so a new upload gets a new link. Learn more Uploads Start an upload

FAQUpdated November 2, 2026

Every upload becomes its own object with its own cbo_ id, so uploading app.zip twice gives you two objects. The earlier one isn't overwritten.

For zips, the newer one builds the current code tree; the older tree stays reachable by its ref.
Both count toward the bucket's storage. Delete the older object if you don't need it.
Public links point to a specific object, so a new upload gets a new link.