.. _whatsnew_233: What's new in 2.3.3 (September XX, 2025) ---------------------------------------- These are the changes in pandas 2.3.3. See :ref:`release` for a full changelog including other versions of pandas. {{ header }} .. --------------------------------------------------------------------------- .. _whatsnew_233.string_fixes: Improvements and fixes for the StringDtype ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Most changes in this release are related to :class:`StringDtype` which will become the default string dtype in pandas 3.0. See :ref:`whatsnew_230.upcoming_changes` for more details. .. _whatsnew_233.string_fixes.bugs: Bug fixes ^^^^^^^^^ - Fix regression in ``~Series.str.contains``, ``~Series.str.match`` and ``~Series.str.fullmatch`` with a compiled regex and custom flags (:issue:`62240`) .. --------------------------------------------------------------------------- .. _whatsnew_233.contributors: Contributors ~~~~~~~~~~~~