Backup Format Comparison

View the list of supported features and backup types for backup formats.

Feature	Legacy Backup Format	New Backup Format
Forever Forward Incremental backup	not supported	✔️
Grandfather-Father-Son (GFS) policy	not supported	✔️
Immutability	not supported	✔️
Synthetic full backup	Only supported for image-based backups and Amazon S3 and Wasabi storages	Supported for all backup types and for most storage providers
Restore Verification	✔️	✔️
Hybrid backup	✔️	coming soon
Client-side deduplication	not supported	✔️
Mandatory consistency check	not supported	✔️
Full consistency checks	not supported	✔️
Changed Block Tracking for VMware	✔️	✔️
Changed Block Tracking for Hyper-V (BETA)	not supported	✔️
Changed Block Tracking for image-based backups	not supported	✔️
Hyper-V backup	✔️	✔️
Microsoft Exchange backup	✔️	not supported
Microsoft SQL Server backup	✔️	not supported