The Apache Arrow community is pleased to announce the 21.0.0 release.
It includes 339 resolved issues [1] since the 20.0.0 release.
The release is available now from our website and [2]:
https://arrow.apache.org/install/
Read about what's new in the release at:
https://arrow.apache.org/blog/2025/07/17/21.0.0-release/
Read the changelog:
https://arrow.apache.org/release/21.0.0.html#changelog
What is Apache Arrow?
---------------------
Apache Arrow is a universal columnar format and multi-language toolbox
for fast data interchange and in-memory analytics. It houses a set of
canonical in-memory representations of flat and hierarchical data
along with multiple language-bindings for structure manipulation. It
also provides low-overhead streaming and batch messaging, zero-copy
interprocess communication (IPC), and vectorized in-memory analytics
libraries.
Please report any feedback to the mailing lists [3].
Regards,
The Apache Arrow community.
[1]: https://github.com/apache/arrow/milestone/69?closed=1
[2]: https://www.apache.org/dyn/closer.cgi/arrow/arrow-21.0.0/
[3]: https://lists.apache.org/list.html?dev@arrow.apache.org
