# DuckDB v1.5.4 — Release & Upgrade Intelligence
- **Product:** DuckDB (https://duckdb.org)
- **Version:** v1.5.4
- **Released:** Jun 17, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/duckdb/updates/v1.5.4/

## Executive Summary (TL;DR)
DuckDB v1.5.4. Source highlight: This is a bug fix release for various issues discovered after we released v1.5.3.

## New Features
- Add vacuum_rebuild_indexes as an (experimental) ATTACH option
- Add avro and unity_catalog to extension list
- Add v1.4.5 to storage version map
- Merge v1.4-andium into v1.5-variegata, and add storage versions v1.4.5 and v1.5.4
- Add hardening to many DuckDB/Parquet decompression/deserializing paths
- [Dev] Add missing `ORDER BY ALL` or `rowsort` to merge into tests

## Improvements
- backport GetLocalFileSystem improvements to andium

## Bug Fixes
- Backport revert append fix to v1.4
- Backport windows-32bit test fix to 1.4
- Fix `TemporaryFileManager` reported size to reflect live blocks
- Fix double free and memory leak in Arrow GeoArrow CRS serialization
- Fix `WindowSelfJoinOptimizer` ignore exception
- fix progress bar output and crash when piping SQL