2.8.4

Issues

• download and restore of an incremental backup delete every other local backup without metadata.json, including downloads still running (cleanPartialRequiredBackup)

  Altinity/clickhouse-backup#1634 · Filter by author guybrush opened on Oct 22, 2026 · 2.8.4
  3

• Add backup of KeeperMap tables, add backup state for S3Queue, AzureQueue

  Altinity/clickhouse-backup#952 · Filter by author UnamedRus opened on Jul 12, 2024 · 2.8.4
  

• Add support backup Iceberg tables

  Altinity/clickhouse-backup#1154 · Filter by author Slach opened on May 31, 2025 · 2.8.4
  

• download and upload speed is different (download slow)

  Altinity/clickhouse-backup#1163 · Filter by author Slach opened on Jun 6, 2025 · 2.8.4
  5

• restore engine=Kafka, engine=*Queue, refreshable materialized view, after restore data as postponedTables

  Altinity/clickhouse-backup#1235 · Filter by author Slach opened on Sep 11, 2025 · 2.8.4
  

• SFTP download spends 25-40% CPU in GC with up to 19k goroutines

  Altinity/clickhouse-backup#1608 · Filter by author Slach opened on Oct 10, 2026 · 2.8.4
  4

• download of an incremental backup hard-links required parts that an interrupted run left half-extracted; restore then fails with Marks file ... doesn't exist

  Altinity/clickhouse-backup#1633 · Filter by author guybrush opened on Oct 22, 2026 · 2.8.4
  1

• clickhouse-backup broken RBAC restore when inactive local access files exist but are not in user_directories list

  Altinity/clickhouse-backup#1666 · Filter by author ringerc opened on Nov 6, 2026 · 2.8.4
  

• Batch object deletion for embedded backups

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  Altinity/clickhouse-backup#1677·cryptoque opened Nov 10, 2026 · Updated Nov 11, 2026