Confluence supports importing site and space backups into which major version?

• A. Same minor version
• B. Different major versions
• C. Same major version only (for XML)
• D. Any major version

Answer: (C)

Backups are version-sensitive. When you export and later re-import an XML backup, the data structures, schema, and how Confluence stores relationships are tied to a specific major version. Restoring an XML backup into a different major version would risk mismatches and failures, so Confluence restricts import to the same major version. This is why the best fit is that XML backups can be imported only into an instance with the same major version. If you need to move to a newer major version, you follow the upgrade path instead of a straight import.