From 17aef51a8abc39344aad21b4f01fe64c0372e5d1 Mon Sep 17 00:00:00 2001
From: Noam Kushinsky <noamkush@gmail.com>
Date: Mon, 3 Aug 2026 12:08:38 +0300
Subject: [PATCH 1/2] Fix computed field inheritance with pydantic 2.13

---
 pydantic_xml/fields.py        |  9 +++++++++
 tests/test_computed_fields.py | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/pydantic_xml/fields.py b/pydantic_xml/fields.py
index 9f916b7..a262a7d 100644
--- a/pydantic_xml/fields.py
+++ b/pydantic_xml/fields.py
@@ -239,6 +239,15 @@ def __post_init__(self) -> None:
         if config.REGISTER_NS_PREFIXES and self.nsmap:
             utils.register_nsmap(self.nsmap)
 
+    def __copy__(self) -> 'ComputedXmlEntityInfo':
+        return dc.replace(
+            self,
+            examples=self.examples.copy() if isinstance(self.examples, list) else self.examples,
+            json_schema_extra=self.json_schema_extra.copy()
+            if isinstance(self.json_schema_extra, dict)
+            else self.json_schema_extra,
+        )
+
 
 PropertyT = typing.TypeVar('PropertyT')
 
diff --git a/tests/test_computed_fields.py b/tests/test_computed_fields.py
index 6332fd9..16f1e2a 100644
--- a/tests/test_computed_fields.py
+++ b/tests/test_computed_fields.py
@@ -42,6 +42,22 @@ def attr2(self) -> str:
     assert_xml_equal(actual_xml, xml)
 
 
+def test_inherited_computed_attr():
+    class BaseModel(BaseXmlModel):
+        @computed_attr
+        def attr(self) -> str:
+            return 'text'
+
+    class TestModel(BaseModel, tag='model'):
+        pass
+
+    xml = '''
+    <model attr="text" />
+    '''
+
+    assert_xml_equal(TestModel().to_xml(), xml)
+
+
 def test_computed_elements():
     class TestModel(BaseXmlModel, tag='model'):
         @computed_element(tag='element1')
@@ -65,6 +81,24 @@ def element2(self) -> str:
     assert_xml_equal(actual_xml, xml)
 
 
+def test_inherited_computed_element():
+    class BaseModel(BaseXmlModel):
+        @computed_element
+        def element(self) -> str:
+            return 'text'
+
+    class TestModel(BaseModel, tag='model'):
+        pass
+
+    xml = '''
+    <model>
+        <element>text</element>
+    </model>
+    '''
+
+    assert_xml_equal(TestModel().to_xml(), xml)
+
+
 def test_computed_nillable_elements():
     class TestModel(BaseXmlModel, tag='model'):
         @computed_element(tag='element1', nillable=True)

From dae97484b8d8c13bc02499a77e8a203c528f437e Mon Sep 17 00:00:00 2001
From: Dmitry Pershin <dapper1291@gmail.com>
Date: Sat, 8 Aug 2026 13:49:02 +0500
Subject: [PATCH 2/2] bump version 2.21.1.

---
 CHANGELOG.rst  | 6 ++++++
 pyproject.toml | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index ad8a461..5466401 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,12 @@
 Changelog
 =========
 
+2.21.1 (2026-08-08)
+-------------------
+
+- fix: computed field inheritance with pydantic 2.13
+
+
 2.21.0 (2026-05-17)
 -------------------
 
diff --git a/pyproject.toml b/pyproject.toml
index 30c8005..52153c0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pydantic-xml"
-version = "2.21.0"
+version = "2.21.1"
 description = "pydantic xml extension"
 authors = ["Dmitry Pershin <dapper1291@gmail.com>"]
 license = "Unlicense"