1.4.5

This is a bug fix release for various issues discovered after we released v1.4.4.

Please also refer to the announcement blog post: https://duckdb.org/2026/06/17/announcing-duckdb-145.html

What's Changed

• Internal #7212: FILL Empty Chunk by @hawkfish in https://github.com/duckdb/duckdb/pull/20657
• Secret Manager: Ensure secrets are created exactly once by @Mytherin in https://github.com/duckdb/duckdb/pull/20686
• Use FileSystem APIs in QueryProfiler::Write by @Mytherin in https://github.com/duckdb/duckdb/pull/20727
• Fix escape handling in AddEscapes function by @llukito in https://github.com/duckdb/duckdb/pull/20760
• Fixup test/extension/update_extensions_ci.test [v1.4-andium] by @carlopi in https://github.com/duckdb/duckdb/pull/20777
• Backport various race condition fixes to v1.4 by @Mytherin in https://github.com/duckdb/duckdb/pull/20804
• bump ref to azure for v1.4.4 (rebuild) by @benfleis in https://github.com/duckdb/duckdb/pull/20888
• Internal #7584: AsOf Simple Joins by @hawkfish in https://github.com/duckdb/duckdb/pull/21090
• Do not write ccache to github cache for v1.4-andium by @smvv in https://github.com/duckdb/duckdb/pull/21109
• Disable extension caching for v1.4 to free github cache space by @smvv in https://github.com/duckdb/duckdb/pull/21150
• Disable save_cache for v1.4-andium by @smvv in https://github.com/duckdb/duckdb/pull/21167
• Backport #19232: allow * Not similar to 'pattern' by @Dtenwolde in https://github.com/duckdb/duckdb/pull/21177
• backport zstd PR to 1.4 by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/21178
• Fix unbounded row group growth for indexed tables on repeated load+insert cycles by @abramk in https://github.com/duckdb/duckdb/pull/21316
• Backport #21271 by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/21326
• [lance] Add for v1.4-andium by @carlopi in https://github.com/duckdb/duckdb/pull/21410
• add lance for v1.4 by @samansmink in https://github.com/duckdb/duckdb/pull/21113
• Correctly detect overflows when decoding integers from storage by @Mytherin in https://github.com/duckdb/duckdb/pull/21482
• Bump Julia to v1.4.4 on v1.4-andium by @taniabogatsch in https://github.com/duckdb/duckdb/pull/21589
• Fix for CSV reader buffer-boundary value read by @Mytherin in https://github.com/duckdb/duckdb/pull/21577
• Backport __EMSCRIPTEN__ fix by @Mytherin in https://github.com/duckdb/duckdb/pull/21581
• counting fix by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/21733
• backport 22094 by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/22136
• backport 21815 & 21427 by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/22137
• remove CleanupState destructor and remove noexcept on DuckCleanupInfo… by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/22186
• Backport revert append fix to v1.4 by @Mytherin in https://github.com/duckdb/duckdb/pull/22414
• Backport windows-32bit test fix to 1.4 by @staticlibs in https://github.com/duckdb/duckdb/pull/22639
• Bump httpfs to fix CI by @sebastiaan-dev in https://github.com/duckdb/duckdb/pull/22817
• bump avro hash for 1.4.5 by @djouallah in https://github.com/duckdb/duckdb/pull/22952
• Rename emscripten action in v1.4 by @smvv in https://github.com/duckdb/duckdb/pull/23045
• Add v1.4.5 to storage version map by @carlopi in https://github.com/duckdb/duckdb/pull/23081
• Backport PR #22348 to andium by @carlopi in https://github.com/duckdb/duckdb/pull/23084
• Backport variegata bugfixes into andium by @carlopi in https://github.com/duckdb/duckdb/pull/23085
• Bump vortex in andium by @carlopi in https://github.com/duckdb/duckdb/pull/23091
• Bump extensions to v1.4-andium by @carlopi in https://github.com/duckdb/duckdb/pull/23090
• backport GetLocalFileSystem improvements to andium by @ccfelius in https://github.com/duckdb/duckdb/pull/23130
• backport the out-of-bounds security fixes made in #23100 by @Tishj in https://github.com/duckdb/duckdb/pull/23197
• Remove checked_array_iterator from fmt dep (1.4) by @carlopi in https://github.com/duckdb/duckdb/pull/23261
• Remove checked_array_iterator from fmt dep (1.4) by @staticlibs in https://github.com/duckdb/duckdb/pull/23239

Full Changelog: https://github.com/duckdb/duckdb/compare/v1.4.4...v1.4.5