diff --git a/doc/changes.rst b/doc/changes.rst
index 3a56056..d66390f 100644
--- a/doc/changes.rst
+++ b/doc/changes.rst
@@ -8,6 +8,12 @@ All Patsy releases are archived at Zenodo:
 .. image:: https://zenodo.org/badge/DOI/10.5281/zenodo.592075.svg
    :target: https://doi.org/10.5281/zenodo.592075
 
+v0.5.5
+------
+
+* Handle deprecation of `_is_categorical_dtype` in `pandas`.
+* Replace `numpy.issubsctype` usage with `numpy.issubdtype` for compatibility with `numpy` 2.0.
+
 v0.5.4
 ------
 
diff --git a/patsy/version.py b/patsy/version.py
index 78760ec..927e213 100644
--- a/patsy/version.py
+++ b/patsy/version.py
@@ -17,4 +17,4 @@
 # want. (Contrast with the special suffix 1.0.0.dev, which sorts *before*
 # 1.0.0.)
 
-__version__ = "0.5.4"
+__version__ = "0.5.5"