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Borg Backup Server

v2.64.0 Feature

This release adds 3 notable features for engineering teams evaluating rollout.

Published 11d Backup & Recovery
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

backup backup-manager borg-backup borgbackup borgbackup-gui borgbackup-web-ui
+2 more
self-hosted web-gui

Summary

AI summary

Recovery points can now be locked to prevent pruning and deletion.

Changes in this release

Feature Medium

Recovery points can be locked to prevent pruning and deletion.

Recovery points can be locked to prevent pruning and deletion.

Source: llm_adapter@2026-07-16

Confidence: high

Feature Medium

Restore progress shows real percentage in queue and dashboard.

Restore progress shows real percentage in queue and dashboard.

Source: llm_adapter@2026-07-16

Confidence: high

Dependency Low

Agent updates to version 2.64.0, including PostgreSQL enumeration and Windows SSH key fixes.

Agent updates to version 2.64.0, including PostgreSQL enumeration and Windows SSH key fixes.

Source: llm_adapter@2026-07-16

Confidence: high

Bugfix Medium

Restore downloads now stage on backup data volume, preventing OS disk fill.

Restore downloads now stage on backup data volume, preventing OS disk fill.

Source: llm_adapter@2026-07-16

Confidence: high

Bugfix Medium

PostgreSQL backups with dedicated user now use postgres maintenance database.

PostgreSQL backups with dedicated user now use postgres maintenance database.

Source: llm_adapter@2026-07-16

Confidence: high

Bugfix Medium

Windows clients can connect to Remote SSH storage; SSH keys written with correct line endings.

Windows clients can connect to Remote SSH storage; SSH keys written with correct line endings.

Source: llm_adapter@2026-07-16

Confidence: high

Full changelog

Recovery Point Locking

The headline feature of this release (#314): any recovery point can now be locked so it is never pruned and cannot be deleted — for example to preserve a specific point-in-time backup during litigation, an audit, or an investigation.

  • Each archive row has a Lock / Unlock toggle; locked recovery points show a padlock badge.
  • Protection is enforced inside borg itself, not just in the UI: a locked archive is renamed so the prune filter can never select it, on local and remote SSH repositories alike.
  • While locked, the archive cannot be deleted from BBS — and deleting its repository or client is blocked too, so the hold has no back door.
  • If the repository is busy when you click, the lock/unlock is queued and applies automatically when the running job finishes — no waiting around.
  • Unlocking returns the recovery point to normal retention rules.

Improvements

  • Restore progress (#343) — running restores show a real percentage in the queue and dashboard (expected file count resolved when the restore is queued, with a byte-based fallback) instead of an indefinite "Preparing…" bar.
  • Restore downloads no longer fill the OS disk (#344) — download staging moved to the backup data volume, with an up-front free-space check that refuses oversized downloads cleanly, automatic cleanup when a download is abandoned, and an hourly sweep for stranded staging directories. Previously a large download could fill /tmp and crash every running backup.

Bug Fixes

  • PostgreSQL backups with a dedicated backup user failed on v2.63.0 (#345) — the database enumeration introduced in v2.63.0 connected to a database named after the login user; it now uses the postgres maintenance database, matching pre-2.63 behavior with no new permission requirements.
  • Windows clients failed against Remote SSH storage (#347) — the per-job SSH key was written with Windows line endings, which OpenSSH rejects; keys are now written byte-exact on all platforms. Local repositories were unaffected.

Agent

The agent updates to 2.64.0 (PostgreSQL enumeration fix, Windows SSH key fix). Agents update automatically once the server is on 2.64.0.

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Beta — feedback welcome: [email protected]