Apache Arrow ADBC 19 (Libraries) Release

Published 08 Jul 2025
By The Apache Arrow PMC (pmc)

The Apache Arrow team is pleased to announce the version 19 release of the Apache Arrow ADBC libraries. This release includes 60 resolved issues from 27 distinct contributors.

This is a release of the libraries, which are at version 19. The API specification is versioned separately and is at version 1.1.0.

The subcomponents are versioned independently:

  • C/C++/GLib/Go/Python/Ruby: 1.7.0
  • C#: 0.19.0
  • Java: 0.19.0
  • R: 0.19.0
  • Rust: 0.19.0

The release notes below are not exhaustive and only expose selected highlights of the release. Many other bugfixes and improvements have been made: we refer you to the complete changelog.

Release Highlights

  • Apache Hive/Impala/Spark, Databricks: these drivers have received a plethora of improvements, optimizations, and bug fixes.
  • DataFusion: the arrow crate version requirement is now independent from that of the adbc_core crate, to make it easier to use older versions of the dependency when not using the DataFusion driver (#3017).
  • Driver Manager: drivers can now be loaded by searching configuration directories (or on Windows, the registry) for ‘manifest’ files describing where the driver is located (#2918, #3018, #3021, #3036, #3041). Add freethreaded wheels for the driver manager in Python 3.13. These are still experimental; please file a bug report with any feedback (#3063). Make it easier to use the DB-API layer in Python without depending on PyArrow, to make it easier for users of polars and other libraries (#2839).
  • Flight SQL (Go): the last release unintentionally renamed the entrypoint symbol. Both the old and ‘new’ names are now present (#3056). Use custom certificates (when present) for OAuth (#2829).
  • PostgreSQL: ingest zoned timestamps as TIMESTAMP WITH TIME ZONE (#2904) and support reading the int2vector type (#2919).
  • Snowflake: fix issues with COPY concurrency options (#2805), logging spam (#2807), and boolean result columns (#2854). Add an option to return timestamps in microseconds to avoid overflow with extreme values (#2917).
  • Rust: make a breaking change from &mut self to &mut in one API to enable fearless concurrency (#2788).
  • Add experimental support for integrating with OpenTelemetry, starting with the Snowflake driver. (#2729, #2825, #2847, #2951).
  • Improve the build experience when using Meson (#2848, #2849). Make it easier to statically link drivers (#2738).

Contributors

$ git shortlog --perl-regexp --author='^((?!dependabot\[bot\]).*)$' -sn apache-arrow-adbc-18..apache-arrow-adbc-19
    32	David Li
    20	Daijiro Fukuda
    16	Todd Meng
    10	eric-wang-1990
     7	eitsupi
     6	Matt Topol
     6	davidhcoe
     5	Bruce Irschick
     5	Sutou Kouhei
     3	Dewey Dunnington
     3	Jacky Hu
     2	Alex Guo
     2	Bryce Mecum
     2	Jade Wang
     2	James Thompson
     2	William Ayd
     2	qifanzhang-ms
     1	Arseny Tsypushkin
     1	Felipe Oliveira Carvalho
     1	Hiroyuki Sato
     1	Hélder Gregório
     1	Jan-Hendrik Zab
     1	Jarro van Ginkel
     1	Jolan Rensen
     1	Sergei Grebnov
     1	Sudhir Reddy Emmadi
     1	amangoyal

Roadmap

We plan to continue expanding support for features like OpenTelemetry that have been introduced experimentally.

There is some discussion on a potential second revision of ADBC to include more missing functionality and asynchronous API support. For more, see the milestone. We would welcome suggestions on APIs that could be added or extended. Some of the contributors are planning to begin work on a proposal in the eventual future.

Getting Involved

We welcome questions and contributions from all interested. Issues can be filed on GitHub, and questions can be directed to GitHub or the Arrow mailing lists.