dev/changelog/49.0.0.md

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# Apache DataFusion Python 49.0.0 Changelog

This release consists of 16 commits from 7 contributors. See credits at the end of this changelog for more information.

**Fixed bugs:**

- fix(build): Include build.rs in published crates [#1199](https://github.com/apache/datafusion-python/pull/1199) (colinmarc)

**Other:**

- 48.0.0 Release [#1175](https://github.com/apache/datafusion-python/pull/1175) (timsaucer)
- Update CI rules [#1188](https://github.com/apache/datafusion-python/pull/1188) (timsaucer)
- Fix Python UDAF Accumulator Interface example to Properly Handle State and Updates with List[Array] Types [#1192](https://github.com/apache/datafusion-python/pull/1192) (kosiew)
- chore: Upgrade datafusion to version 49 [#1200](https://github.com/apache/datafusion-python/pull/1200) (nuno-faria)
- Update how to dev instructions [#1179](https://github.com/apache/datafusion-python/pull/1179) (ntjohnson1)
- build(deps): bump object_store from 0.12.2 to 0.12.3 [#1189](https://github.com/apache/datafusion-python/pull/1189) (dependabot[bot])
- build(deps): bump uuid from 1.17.0 to 1.18.0 [#1202](https://github.com/apache/datafusion-python/pull/1202) (dependabot[bot])
- build(deps): bump async-trait from 0.1.88 to 0.1.89 [#1203](https://github.com/apache/datafusion-python/pull/1203) (dependabot[bot])
- build(deps): bump slab from 0.4.10 to 0.4.11 [#1205](https://github.com/apache/datafusion-python/pull/1205) (dependabot[bot])
- Improved window and aggregate function signature [#1187](https://github.com/apache/datafusion-python/pull/1187) (timsaucer)
- Optional improvements in verification instructions [#1183](https://github.com/apache/datafusion-python/pull/1183) (paleolimbot)
- Improve `show()` output for empty DataFrames [#1208](https://github.com/apache/datafusion-python/pull/1208) (kosiew)
- build(deps): bump actions/download-artifact from 4 to 5 [#1201](https://github.com/apache/datafusion-python/pull/1201) (dependabot[bot])
- build(deps): bump url from 2.5.4 to 2.5.7 [#1210](https://github.com/apache/datafusion-python/pull/1210) (dependabot[bot])
- build(deps): bump actions/checkout from 4 to 5 [#1204](https://github.com/apache/datafusion-python/pull/1204) (dependabot[bot])

## Credits

Thank you to everyone who contributed to this release. Here is a breakdown of commits (PRs merged) per contributor.

```
     7	dependabot[bot]
     3	Tim Saucer
     2	kosiew
     1	Colin Marc
     1	Dewey Dunnington
     1	Nick
     1	Nuno Faria
```

Thank you also to everyone who contributed in other ways such as filing issues, reviewing PRs, and providing feedback on this release.