v1.10505.0

Highlights

• New type support: UHUGEINT via u128 (#795), a DuckDB-native Decimal carrier covering all decimals up to DECIMAL(38, s) (#799), GEOMETRY exposed as WKB with CRS metadata (#801), Arrow arrow.uuid extension mapping to UUID (#808), and narrow Arrow Decimal32/Decimal64 (#806)
• Nested types via Arrow: LIST, STRUCT, MAP, and fixed-size ARRAY values now round-trip through Arrow record batches, vtabs, and scalar functions, with correct timestamp unit handling (#811, #813, #819)
• Panic containment: panics in scalar and table function callbacks become query errors instead of aborting the host process so the connection stays usable (#824)
• Correct result metadata: schema and logical types are decoded from the executed result, fixing stale metadata when cached prepared statements outlive schema changes (#800, #803)
• Leaner build deps: libduckdb-sys downloads now use ureq instead of reqwest, dropping the tokio/hyper stack from build dependencies (#826)
• ⚠️ Breaking: Type, Value, and ValueRef are now #[non_exhaustive] with new UHugeInt variants (#795); Statement::step returns Result<Option<StructArray>> (#800); stream_arrow no longer takes a schema parameter and the deprecated stream_step is removed (#807)
• Updated DuckDB to v1.5.5 (#825) and Rust to 1.97 (#812)

What's Changed

• Document Andium LTS branch by @mlafeldt in #790
• Add stub nightly CI job for integration testing by @mlafeldt in #791
• Test DuckDB nightly commits by @mlafeldt in #792
• Speed up nightly CI runs by @mlafeldt in #793
• Save Rust CI caches only from main by @mlafeldt in #794
• Harden Rust CI cache saves by @mlafeldt in #796
• Add UHUGEINT support by @mlafeldt in #795
• Represent DuckDB decimals natively by @mlafeldt in #799
• Fix stale logical metadata by decoding from executed result by @mlafeldt in #800
• Support GEOMETRY type by @mlafeldt in #801
• Bump sanitizer nightly toolchain to 2026-07-02 by @mlafeldt in #802
• Extract RAII ExecutedResult owner by @mlafeldt in #803
• Add modern Arrow API examples and coverage by @mlafeldt in #804
• Document deferred constraint checking on Appender by @mlafeldt in #805
• Support narrow Arrow decimals by @mlafeldt in #806
• Remove ignored schema parameter from Arrow streaming API by @mlafeldt in #807
• Support Arrow UUID extension metadata by @mlafeldt in #808
• Split up the Arrow monolith by @mlafeldt in #809
• Improve rustdoc accuracy and coverage by @mlafeldt in #810
• Update Rust to 1.97 by @mlafeldt in #812
• Unify recursive Arrow-to-DuckDB vector writes by @mlafeldt in #811
• Fix extension header for downloaded DuckDB libs by @mlafeldt in #814
• Pin macOS deployment target to silence linker warnings by @mlafeldt in #818
• Read nested DataChunks as Arrow by @mlafeldt in #813
• Fix Arrow timestamp carrier conversion by @mlafeldt in #819
• Prepare vector modules for native nested types by @mlafeldt in #823
• Contain panics across scalar and table callbacks by @mlafeldt in #824
• Replace reqwest with ureq for the libduckdb download by @mlafeldt in #826
• Update DuckDB to v1.5.5 by @mlafeldt in #825
• Correct documentation for supported workflows by @mlafeldt in #827

Full Changelog: v1.10504.0...v1.10505.0

v1.10504.0

What's Changed

• Slice large RecordBatches in ArrowVTab by @mlafeldt in #770
• Harden ArrowVTab batch slicing by @mlafeldt in #771
• Overhaul developer documentation by @mlafeldt in #772
• Update Rust to 1.96 by @mlafeldt in #775
• I see dead code by @mlafeldt in #776
• Build script cleanups by @mlafeldt in #777
• Expose Arrow C Data ABI structs in libduckdb-sys by @mlafeldt in #778
• Implement Sync for Appender by @mlafeldt in #779
• Add vscalar example by @mlafeldt in #780
• Add vtab example covering complex column types by @mlafeldt in #781
• Rebuild when pregenerated bindings change by @mlafeldt in #782
• Fix bundled builds on Windows/MSVC by @mlafeldt in #783
• Make VScalar::invoke safe to align with VTab by @mlafeldt in #785
• Enable pre-release testing by @mlafeldt in #787
• Update DuckDB to v1.5.4 by @mlafeldt in #788

Full Changelog: v1.10503.1...v1.10504.0

v1.4.5 (Andium LTS)

Full Changelog: v1.4.5...v1.4.5

What's Changed

• Update DuckDB to v1.4.5 (LTS release) by @mlafeldt in #789

Full Changelog: v1.4.4...v1.4.5

v1.10503.1

What's Changed

• Avoid Windows mtime restore in bundled builds by @mlafeldt in #766
• Add patch-release mode to upgrade script by @mlafeldt in #767
• Crate patch release v1.10503.1 by @mlafeldt in #768

Full Changelog: v1.10503.0...v1.10503.1

v1.10503.0

Highlights

• New ergonomic named parameter binding: named_params! macro, &[(&str, &dyn ToSql)] slices, and a generic HashMap Params impl.
• New build env vars: DUCKDB_DISABLE_EXTENSION_LOAD=1 disables extension install/load, and DUCKDB_DISABLE_JEMALLOC=1 opts bundled-cmake builds out of jemalloc (now re-enabled by default on supported targets).
• FFI soundness: typed vector slice/set_child APIs are now unsafe; DuckDB-owned C strings use RAII; binding unsupported Value variants errors instead of panicking.
• ArrowVTab view rebinds no longer dereference freed Arrow FFI memory.
• vtab::Value gains typed primitive getters and to_list() -> Option<Vec<Value>>.
• Bundled DuckDB upgraded to v1.5.3 (adds VARIANT metadata).

What's Changed

• Fix unsound vector slice API by @mlafeldt in #745
• Refine vtab::Value API from #676 by @mlafeldt in #747
• Build out vtab::Value to enable more diverse parameters to Table Functions by @marksomething in #676
• Bump rustls-webpki from 0.103.11 to 0.103.13 by @dependabot[bot] in #744
• Add ergonomic named parameter binding by @mlafeldt in #748
• Implement Params for HashMap and serde_json::Value by @ryanschneider in #615
• Harden DuckDB-owned string handling at FFI boundaries by @mlafeldt in #750
• Update Rust to 1.95 by @mlafeldt in #751
• Stop panicking when binding/appending unsupported Value variants by @mlafeldt in #749
• Fix ArrowVTab view rebind lifetime by @mlafeldt in #754
• Retain ArrowVTab batches for sanitizer visibility by @mlafeldt in #755
• Pass Rust edition to rust.vim for proper formatting by @mlafeldt in #756
• Make DuckDB source archive reproducible by @mlafeldt in #759
• Change LogicalTypeHandle::set_alias to take &mut self by @vergenzt in #758
• libduckdb-sys: expose DEP_DUCKDB_INCLUDE for downstream C/C++ shims by @frhack in #753
• Update DuckDB to v1.5.3 by @mlafeldt in #760
• Allow to disable extension install/load support by @mlafeldt in #738
• Use improved upstream extension loader by @mlafeldt in #746
• Stop disabling jemalloc in bundled-cmake builds by @mlafeldt in #762
• Add bundled-cmake jemalloc escape hatch by @mlafeldt in #763

New Contributors

• @marksomething made their first contribution in #676
• @ryanschneider made their first contribution in #615
• @vergenzt made their first contribution in #758
• @frhack made their first contribution in #753

Full Changelog: v1.10502.0...v1.10503.0

v1.10502.0

Highlights

• Lifetime-safe vectors: FlatVector, ListVector, ArrayVector, and StructVector now carry a lifetime parameter tied to DataChunkHandle, preventing use-after-free bugs. Breaking: these types must be written as FlatVector<'_>, etc.
• Static DuckDB extensions (experimental): new bundled-cmake feature builds DuckDB through upstream CMake, enabling static extensions like icu. Checkout-only for now.
• Upgraded to bundled DuckDB v1.5.2.

What's Changed

• Restrict Dependabot to direct dependencies by @mlafeldt in #719
• Disable routine dependabot version PRs by @mlafeldt in #730
• Add -c flag to example REPL for testing by @mlafeldt in #735
• Update Cargo.lock and pin comfy-table by @mlafeldt in #736
• Tie vector lifetimes to DataChunkHandle by @mlafeldt in #737
• Enable static DuckDB extensions via Cargo in checkouts by @mlafeldt in #732
• Update DuckDB to v1.5.2 by @mlafeldt in #741

Full Changelog: v1.10501.0...v1.10502.0

v1.10501.0

Highlights

• New profiling metrics API: collect query profiling data (timing, row counts, operator tree) via Connection.
• Removed deprecated arrow2 exposure: step2() is gone. Use query_polars() for Polars DataFrames or step() for raw arrow-rs access. Breaking change.
• duckdb_entrypoint_c_api macro now suppresses the clippy::missing_safety_doc lint automatically.
• Upgraded to Arrow 58 and bundled DuckDB v1.5.1.

What's Changed

• duckdb_entrypoint_c_api: suppress missing_safety_doc lint by @mlafeldt in #704
• Clarify MSRV policy under new versioning by @mlafeldt in #705
• Update deps for development by @mlafeldt in #706
• Add support for collecting profiling metrics by @Maxxen in #707
• Profiling metrics follow-up by @Maxxen in #712
• chore: update to arrow v58 by @gadomski in #702
• Remove direct arrow2 exposure by @mlafeldt in #698
• Adapt upgrade.sh scripts to new versioning by @mlafeldt in #717
• Update DuckDB to v1.5.1 by @mlafeldt in #718

New Contributors

• @gadomski made their first contribution in #702

Full Changelog: v1.10500.0...v1.10501.0

v1.10500.0

Warning

New crate versioning scheme. Crate versions now encode the DuckDB version in their second semver component (1.MAJOR_MINOR_PATCH.x), allowing patch releases independent of DuckDB. For example, DuckDB v1.5.0 maps to crate version 1.10500.x.

Highlights

• Full rust_decimal::Decimal support: FromSql, ToSql, and Appender binding for decimal values.
• Params implemented for tuples (up to arity 16), enabling conn.execute("...", (a, b, c)) syntax.
• ENUM columns now support FromSql<String> directly.
• Date32 and Time64 can now be bound in prepared statements.
• Loadable extensions need only a single duckdb crate dependency; eliminated .unwrap() panic paths in duckdb_entrypoint_c_api macro.
• Fix: cloned database handles now keep the original db handle alive (fixes #312).
• Fix: chrono datetime writes normalized to UTC.
• Upgraded to Rust edition 2024, Arrow 57, and bundled DuckDB v1.5.0.

What's Changed

• Allow to write extension using a single crate dependency by @mlafeldt in #674
• Update authors to include DuckDB Labs and contributors by @mlafeldt in #675
• Upgrade to arrow 57 by @mjgarton in #631
• Bump bytes from 1.11.0 to 1.11.1 by @dependabot[bot] in #677
• Fix: keep db handle alive for clones by @mlafeldt in #678
• Simplify ASan CI job by @mlafeldt in #685
• Allow binding Date32 and Time64 by @ultrabear in #682
• Rust 2024 by @mlafeldt in #686
• Remove stale copyright years from README by @mlafeldt in #688
• Verify MSRV in CI by @mlafeldt in #687
• Implement Params for tuples by @mlafeldt in #689
• Fix MSRV CI: disable cargo bin caching by @mlafeldt in #690
• Update contributing doc for required dependency by @dentiny in #633
• Skip CI for doc changes by @mlafeldt in #691
• Add regression test for reading ENUM by @mlafeldt in #693
• Support FromSql for ENUM columns by @mlafeldt in #694
• Speed up ASAN in CI by @mlafeldt in #695
• Update Rust to 1.94 by @mlafeldt in #697
• Feat/bind support for rust_decimal::Decimal by @destinyFvcker in #634
• Improve error handling in duckdb_entrypoint_c_api by @mlafeldt in #699
• fix(loadable-macros): eliminate .unwrap() panic paths in generated extern "C" entry point by @tomtom215 in #696
• Update DuckDB to v1.5.0 by @mlafeldt in #701

New Contributors

• @mjgarton made their first contribution in #631
• @ultrabear made their first contribution in #682
• @dentiny made their first contribution in #633
• @destinyFvcker made their first contribution in #634
• @tomtom215 made their first contribution in #696

Full Changelog: v1.4.4...v1.10500.0

v1.4.4

Highlights

• Appender::append_rows now accepts tuples for heterogeneous data types directly.
• Loadable extension setup simplified: single loadable-extension feature replaces vtab-loadable + loadable-extension.
• duckdb_entrypoint_c_api macro re-exported from main crate - no need to depend on duckdb-loadable-macros directly anymore.
• stream_arrow() now works with CALL statements via automatic fallback to duckdb_fetch_chunk().
• Streaming execution returns descriptive DuckDB error messages instead of "Unknown error code".
• Performance: ~2x faster column name lookups via lazy HashMap cache; removed redundant null checks; zero-copy FlatVector::insert for strings.
• Build: fixed static linking (libduckdb_static.a) and cargo cache invalidation from absolute OUT_DIR.
• Updated bundled DuckDB to v1.4.4 and Rust to 1.93.

What's Changed

• Update Cargo.lock and bump crate version in README by @mlafeldt in #646
• Remove legacy duckdb_entrypoint macro by @mlafeldt in #652
• Re-export duckdb_entrypoint_c_api from main crate by @mlafeldt in #653
• Consolidate loadable extension features by @mlafeldt in #654
• Update Rust to 1.92 by @mlafeldt in #656
• fix(build): prevent cargo cache invalidation from absolute OUT_DIR path by @cameronraysmith in #658
• libduckdb-sys/build.rs: fix link directive when statically linking by @brunal in #655
• performance(row): remove useless null check in value_ref_internal by @fvaleye in #662
• Enable stream_arrow() to work with CALL statements by @leo-altertable in #660
• Extract error messages in execute_streaming to provide descriptive errors by @redox in #661
• performance(statement): introduce a lazy cache for column name to index by @fvaleye in #663
• Avoid unnecessary copy and allocation in FlatVector::insert by @sfc-gh-bhannel in #665
• feat: implement AppenderParams for tuples by @MathewBravo in #647
• Update Rust to 1.93 by @mlafeldt in #669
• Update DuckDB to v1.4.4 by @mlafeldt in #671
• Update copyright year by @mlafeldt in #672

New Contributors

• @cameronraysmith made their first contribution in #658
• @brunal made their first contribution in #655
• @redox made their first contribution in #661
• @sfc-gh-bhannel made their first contribution in #665
• @MathewBravo made their first contribution in #647

Full Changelog: v1.4.3...v1.4.4

v1.4.3

Highlights

• Build can auto-download matching prebuilt libduckdb via DUCKDB_DOWNLOAD_LIB=1.
• Appenders now support column subsets and column switching; defaults/NULLs fill the rest.
• Table functions can store extra info via the new register_table_function_with_extra_info.
• Scalar functions can be marked volatile using the volatile trait method.
• Logical type coverage broadened (new DuckDB IDs, Unsupported fallback).
• Updated bundled DuckDB to v1.4.3

What's Changed

• Update Rust to 1.91 by @mlafeldt in #626
• Download pre-built DuckDB libraries by @mlafeldt in #628
• Handle invalid & unsupported DuckDB types more gracefully by @mlafeldt in #629
• Add missing LogicalTypeId variants to match DuckDB C API by @leo-altertable in #630
• Allow to pass extra info to table functions by @mlafeldt in #637
• Align scalar state semantics and revert TableFunctionOptions by @mlafeldt in #638
• Support volatile scalar functions by @mlafeldt in #639
• Add ListVector::get_entry by @mlafeldt in #640
• Update broken links in CONTRIBUTING.md by @mlafeldt in #641
• Add column-selective appender API with default support by @mlafeldt in #642
• Remove broken release changelog/action by @mlafeldt in #645
• Update DuckDB to v1.4.3 by @mlafeldt in #644

New Contributors

• @leo-altertable made their first contribution in #630
• @tobilg made their first contribution in #639

Full Changelog: v1.4.2...v1.4.3