Databend Releases
This page provides information about recent features, enhancements, and bug fixes for Databend.
Sep 9, 2026 (v1.2.940-nightly)
What's Changed
Exciting New Features ✨
- feat(query): unify vacuum commands and execution by @SkyFan2002 in #20428
Thoughtful Bug Fix 🔧
- fix(query): support Databend Arrow types in WASM UDFs by @youngsofun in #20456
- fix(planner): honor query settings in folding and statistics by @forsaken628 in #20448
- fix(storage): avoid collecting vacuum2 result files by @dantengsky in #20419
- fix(storage): read virtual columns when prewhere keeps no rows of a block by @zhang2014 in #20470
Others 📒
- chore: trim dependencies and improve development cleanup by @zhyass in #20461
Full Changelog: https://github.com/databendlabs/databend/releases/tag/v1.2.940-nightly
Sep 8, 2026 (v1.2.939-nightly)
What's Changed
Exciting New Features ✨
- refactor(storage): refine recluster levels and log level IO by @zhyass in #20443
Thoughtful Bug Fix 🔧
- fix(query): add partition write regression tests by @KKould in #20426
- fix(query): correct date interval arithmetic and bounds (#20416) by @TCeason in #20425
- fix(query): avoid outer join error panic by @sundy-li in #20452
- fix(query): prevent hash exchange hangs after early receiver closure by @dqhl76 in #20450
- fix(query): disable join selectivity backoff and align propagation by @forsaken628 in #20453
Build/Testing/CI Infra Changes 🔌
- chore(ci): bump linux build timeout from 60 to 90 minutes by @TCeason in #20451
Others 📒
- chore(query): remove Aggregating Index by @b41sh in #20447
- chore: Improve Virtual Column Block Meta Generation by @b41sh in #20348
Full Changelog: https://github.com/databendlabs/databend/releases/tag/v1.2.939-nightly
