• v3.42.0
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    renz released this 2026-01-07 14:29:40 +00:00 | 46 commits to main since this release

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    Content-Defined Chunking Deduplication

    Like restic/borgbackup but with native database dump support.

    Features

    • Gear Hash CDC - 92%+ chunk overlap on shifted data
    • SHA-256 Content-Addressed - Automatic deduplication
    • AES-256-GCM Encryption - Optional per-chunk encryption
    • Gzip Compression - Enabled by default
    • SQLite Index - Fast chunk lookups

    Commands

    dbbackup dedup backup <file>        # Create deduplicated backup
    dbbackup dedup restore <id> <out>   # Restore from manifest
    dbbackup dedup list                 # List backups
    dbbackup dedup stats                # Show dedup ratio
    dbbackup dedup gc                   # Garbage collect
    

    Test Results

    • First 5MB backup: 448 chunks, 5MB stored
    • Modified file: only 1 NEW chunk (1.6KB), *100% deduppush github main v3.42.0

    Full Changelog: https://github.com/PlusOne/dbbackup/compare/v3.41.1...v3.42.0

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