Yes, you can have bootable backups on macOS Big Sur

Update Nov 24: CCC 5.1.23 can now make bootable backups of a Big Sur startup disk on Intel-based Macs. Support for System volume cloning on Apple Silicon Macs is disabled for now because Apple's APFS replication utility does not currently work on that platform. When Apple fixes that, we'll post an update to CCC that restores support for making bootable backups on Apple Silicon Macs.

Catalina, Read-only System Volume, and HFS is getting out of the system business

Update July 18, 2019: CCC 5.1.10-b3 is now available and addresses the bulk of the changes required for supporting macOS Catalina.

Carbon Copy Cloner 5 is now available for beta testing!

We're delighted to announce the next major version of CCC. With powerful new features for the advanced user and helpful features and simplifications for the novice user – CCC 5 makes managing your backups easier for everyone. Take a look at what's new in CCC 5: