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BorgBackup

INFRA · APIS
Velocity0.0

Deduplicating encrypted backup program

www.borgbackup.org ↗

Borg 2.0 beta 25 breaks repositories to swap its hash and repository format.

backupdeduplicationstorageencryptionbreaking-changes
◆Current state
BorgBackup's 2.0 beta line is still making breaking format changes. Beta 25 requires new repositories: it moves store object names to blake3, replaces several repository objects with an ini-style config, removes the none-sha256 and none-blake3 modes in favor of authenticated ones, and protects lock, index and cache objects with the repository key. The stable 1.4 line remains the production track.
◆Where it's heading
Twenty-five betas in, the format is not settled, but this beta is decisive: it removes old modes and object types, which narrows what 2.0 has to support. Treating lock and cache objects as keyed data also extends the security model beyond archive contents.
◆Prediction
Further betas are likely to keep requiring new repositories until the format freezes, so a release candidate should not be assumed soon. The 1.4 line stays the safe choice until then.

◆Recent moves

  1. 1mo ago

    Beta 25 moves to blake3 and requires new repositories

    A repository-breaking beta with blake3 store hashes, a text config object and keyed lock, index and cache objects. It shows the PACKS-era format is still changing a long way into the beta series.

    View source ↗
  2. 2mo ago

    BorgBackup 2.0.0b24

    Beta 24 continues the 2.0.0 development cycle, advancing the PACKS storage architecture toward stability. Production use remains unsupported; the full changelog is in the linked docs.

    View source ↗
  3. 2mo ago

    BorgBackup 2.0.0b23

    Beta 23 advances the 2.0.0 development track; the team is soliciting practical testing of the PACKS storage format introduced in b22 to surface edge cases before a stable release.

    View source ↗
  4. 3mo ago

    BorgBackup 1.4.5 — security fix and new features

    The 1.4.5 stable release includes a low-severity security fix alongside new features, representing the production-safe track's continued maintenance. Users still on 1.2.x are encouraged to migrate to 1.4.

    View source ↗
  5. 3mo ago

    BorgBackup 2.0.0b22 — PACKS storage format debuts

    ⚡ SPARK

    Beta 22 introduces PACKS, the new fundamental storage model for BorgBackup 2.0. The team flags this as alpha quality despite the beta numbering — early testing is requested before broader adoption.

    View source ↗
  6. 7mo ago

    BorgBackup 1.4.4

    1.4.4 continues the refreshed 1.4.x stable track, which carries features that were too risky for a 1.2.x release. Migration from 1.2 is recommended.

    View source ↗