diff --git a/docs/simple.rst b/docs/simple.rst
index 50eaa12..893ed6e 100644
--- a/docs/simple.rst
+++ b/docs/simple.rst
@@ -63,6 +63,13 @@
 
    .. versionadded:: 2022.1.0
 
+.. data:: ProjectFileDetails
+
+   A :data:`~typing.TypeAlias` for any version of the JSON project file details
+   response.
+
+   .. versionadded:: 2023.2
+
 .. autodata:: ProjectDetails_1_0
    :no-value:
 
diff --git a/mousebender/simple.py b/mousebender/simple.py
index 59f12da..12c9c63 100644
--- a/mousebender/simple.py
+++ b/mousebender/simple.py
@@ -139,6 +139,9 @@ class ProjectFileDetails_1_1(_OptionalProjectFileDetails_1_1):
     size: int
 
 
+ProjectFileDetails: TypeAlias = Union[ProjectFileDetails_1_0, ProjectFileDetails_1_1]
+
+
 class ProjectDetails_1_0(TypedDict):
     """A :class:`~typing.TypedDict` for a project details response (:pep:`691`)."""
 
diff --git a/pyproject.toml b/pyproject.toml
index a11b04c..399666b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "mousebender"
-version = "2023.1"
+version = "2023.2"
 authors = [
     { name = "Brett Cannon", email = "brett@python.org" },
     { name = "Derek Keeler", email = "derek@suchcool.ca" },