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# What’s new in 2.3.4 (November XX, 2025)

These are the changes in pandas 2.3.4. See Release notes for a full changelog including other versions of pandas.

## Bug fixes

- Bug in `DataFrame.__getitem__()` returning modified columns when called with `slice` in Python 3.12 (GH 57500)

- Bug in `Series.str.replace()` raising an error on valid group references (`\1`, `\2`, etc.) on series converted to PyArrow backend dtype (GH 62653)

### Contributors