For a limited time, BeLight Software is giving away (http://tinyurl.com/qe24ba6) Get Backup Pro, the company’s backup and disc cloning software, for Mac users preparing to migrate to OS X El Capitan.

The software lets users clone their Mac’s HD and SSD to get a backup disk that can be booted up and used in case of a crash or accidental data loss that may happen during migration to the new OS. Get Backup Pro will remain free until Sept. 30, when El Capitan is due for release. The regular price is US$19.95.