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

v1.4.2

What's Changed

• Test behavior of multiple in-memory databases by @mlafeldt in #601
• Add test for appending struct fields using params! macro by @mlafeldt in #603
• Mark RawStatement as Send and document thread safety constraints by @mlafeldt in #606
• Add support for querying parameter names in prepared statements by @mlafeldt in #609
• Add installation guide to README by @mlafeldt in #611
• Document ICU extension limitations with bundled feature by @mlafeldt in #612
• Don't try to test README snippet by @mlafeldt in #613
• Add missing 28 to AppenderParams array impl by @mlafeldt in #614
• Create an appender to specific catalog + schema + table by @mchataigner in #623
• Add basic support for FixedSizeBinary using Blob by @mchataigner in #624
• refactor(types): use into_result in from_sql and improve decimal conversion by @fvaleye in #616
• performance(chrono): use write! macro to improve date formatting by @fvaleye in #617
• performance(memory): improve memory allocation when the size is known by @fvaleye in #618
• Add column_logical_type and get/set_alias methods by @diegoimbert in #620
• Update DuckDB to v1.4.2 by @Maxxen in #625

New Contributors

• @mchataigner made their first contribution in #623
• @fvaleye made their first contribution in #616
• @diegoimbert made their first contribution in #620

Full Changelog: v1.4.1...v1.4.2

v1.4.1

What's Changed

• Update Rust to 1.90 by @mlafeldt in #592
• Update MSRV as required by Arrow v56 by @mlafeldt in #596
• Document behavior of INSERT with RETURNING through tests by @mlafeldt in #597
• Support multi-statement queries by @mlafeldt in #598

Full Changelog: v1.4.0...v1.4.1

v1.4.0

What's Changed

• Remove personal development files by @mlafeldt in #534
• Make config API more ergonomic by @mlafeldt in #535
• Document what Date32 is and how to convert it by @mlafeldt in #539
• Improve column_count error handling and documentation by @mlafeldt in #541
• Fix vscalar feature to depend on vtab-arrow by @mlafeldt in #542
• Fix feature configuration using cargo-hack by @mlafeldt in #545
• Remove features extra_check and column_decltype by @mlafeldt in #548
• Document Cargo features by @mlafeldt in #549
• Remove unused SmallCString implementation by @mlafeldt in #550
• Reproduce issue with produce_arrow_string_view and show fix by @mlafeldt in #552
• Add REPL example by @mlafeldt in #553
• Document available examples by @mlafeldt in #555
• Overhaul README by @mlafeldt in #556
• Add query_one convenience method by @mlafeldt in #559
• Show how to use Rows.and_then and point users to it by @mlafeldt in #560
• Fix memory leak in Value Display implementation by @mlafeldt in #562
• Document linking against libduckdb on macOS and Linux by @mlafeldt in #563
• Remove redundant flush and close calls in Appender Drop by @mlafeldt in #564
• Add test for foreign key constraint validation in Appender by @mlafeldt in #565
• Speed up CI by canceling in-progress runs by @mlafeldt in #566
• Clean up ignored tests by @mlafeldt in #567
• Support passing custom state to scalar functions by @mlafeldt in #558
• Remove broken SAVEPOINT implementation copied from rusqlite by @mlafeldt in #568
• Document how to get column count by @mlafeldt in #569
• Use Rust 1.89.0 by @mlafeldt in #573
• Set minimal supported Rust version to 1.82.0 by @mlafeldt in #572
• Fix or remove links to SQLite by @mlafeldt in #578
• Remove unsupported TransactionBehavior by @mlafeldt in #579
• Expose Transaction::new_unchecked by @mlafeldt in #580
• Bump slab from 0.4.10 to 0.4.11 by @dependabot[bot] in #581
• Pin nightly Rust to fix ASAN CI job by @mlafeldt in #584
• build(libduckdb-sys): sort C++ source files for deterministic builds by @FabioCanedo in #583
• Fix arrow list type to duckdb logical type conversion by @wangrunji0408 in #574
• Update Arrow to v56 by @mlafeldt in #589
• Update DuckDB to v1.4.0 by @mlafeldt in #590

New Contributors

• @FabioCanedo made their first contribution in #583
• @wangrunji0408 made their first contribution in #574

Full Changelog: v1.3.2...v1.4.0

v1.3.2

What's Changed

• Fix Parquet example to run from workspace root by @mlafeldt in #522
• Update and clean up dependencies by @mlafeldt in #520
• Optimize dependencies by @paolobarbolini in #513
• Update Rust to v1.88.0 by @mlafeldt in #523
• Publish docs for more features by @mlafeldt in #524
• Expand and test Inserter trait by @mlafeldt in #525
• chore: Let Inserter accept &String and &Vec by @yutannihilation in #507
• ran cargo clippy --fix -- -Wclippy::use_self by @adamnemecek in #502
• cargo clippy --fix --all-features -- -Wclippy::use_self by @mlafeldt in #526
• First round of CI tweaks by @mlafeldt in #527
• enable union test by @Mause in #340
• Fix timezone-dependent chrono tests with fixed timestamps by @mlafeldt in #528
• Fix column names in Arrow tests by @mlafeldt in #529
• possible typo in appender test case by @era127 in #306
• Add interrupt handle by @jankramer in #493
• Support appending large Arrow record batches by @mlafeldt in #530
• Fix conversion of Arrow floating point types by @mlafeldt in #532
• Update DuckDB to v1.3.2 by @mlafeldt in #531

New Contributors

• @paolobarbolini made their first contribution in #513
• @adamnemecek made their first contribution in #502
• @jankramer made their first contribution in #493

Full Changelog: v1.3.1...v1.3.2

v1.3.1

Had to re-issue the release since the CD job failed. Sorry about that!

What's Changed

• Multiple upgrade.sh improvements by @mlafeldt in #514
• Fix a bunch of problems reported by Clippy by @mlafeldt in #517
• Ensure we all use the same Rust version during development by @mlafeldt in #516
• Update to DuckDB v1.3.1 by @mlafeldt in #515
• bump loadable macros crate by @Maxxen in #521

Full Changelog: v1.3.0...v1.3.1