publish version v1.6.0 with these changes (since v1.5.0):

 * 0c6c3c6 2026-01-17 Release as v1.6.0
 * 1705524 2026-01-17 Fix flaky test, because of terminal size
 * 12ec178 2026-01-17 Bugfix: Don't hash new large files twice
 * ad7a42d 2026-01-17 Use compare also in backup tests