diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d435aca18..f840dd493 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -8,18 +8,18 @@ repos:
       - id: end-of-file-fixer
       - id: debug-statements
   - repo: https://github.com/crate-ci/typos
-    rev: v1.22.9
+    rev: v1.23.5
     hooks:
       - id: typos
         exclude: ^tests/|.xsd|xsdata/models/datatype.py$
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.5.0
+    rev: v0.5.5
     hooks:
       - id: ruff
         args: [ --fix, --show-fixes]
       - id: ruff-format
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.10.1
+    rev: v1.11.0
     hooks:
       - id: mypy
         files: ^(xsdata/)
diff --git a/CHANGES.md b/CHANGES.md
index 7d58ae652..792fa97af 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,17 @@
+## 24.7 (2024-07-28)
+
+**Features**
+
+- Improve XML parsing performance on union elements with fixed attributes
+  ([#1066](https://github.com/tefra/xsdata/pull/1066))
+- Skip optional and nillable elements on XML Serializer
+  ([#1066](https://github.com/tefra/xsdata/pull/1066))
+
+**Fixes**
+
+- Reset attr types derived from missing simple types
+  ([#1062](https://github.com/tefra/xsdata/pull/1062))
+
 ## 24.6.1 (2024-06-28)
 
 **Fixes**
diff --git a/README.md b/README.md
index 399ce1706..8cf7bd6be 100644
--- a/README.md
+++ b/README.md
@@ -74,32 +74,16 @@ Check the [documentation](https://xsdata.readthedocs.io) for more ✨✨✨
 - Support xinclude statements and unknown properties
 - Customize behaviour through config
 
-## Changelog: 24.6.1 (2024-06-28)
-
-**Fixes**
-
-- Ruff check command typo breaks generator with v0.5.0
-  ([#1061](https://github.com/tefra/xsdata/pull/1061))
-
-## Changelog: 24.6 (2024-06-24)
+## Changelog: 24.7 (2024-07-28)
 
 **Features**
 
-- Add class and field info in parsing warnings
-  ([#1036](https://github.com/tefra/xsdata/pull/1036))
-- Remove whitespace from bytes encoded xml strings
-  ([#1037](https://github.com/tefra/xsdata/pull/1037))
-- Improve codegen performance ([#1043](https://github.com/tefra/xsdata/pull/1043))
+- Improve XML parsing performance on union elements with fixed attributes
+  ([#1066](https://github.com/tefra/xsdata/pull/1066))
+- Skip optional and nillable elements on XML Serializer
+  ([#1066](https://github.com/tefra/xsdata/pull/1066))
 
 **Fixes**
 
-- JSON serializer fails on derived elements
-  ([#1053](https://github.com/tefra/xsdata/pull/1053))
-- Update typing-extensions minimum version
-  ([#1039](https://github.com/tefra/xsdata/pull/1039))
-- Avoid using not-threadsafe warnings.catch_warning
-  ([#1042](https://github.com/tefra/xsdata/pull/1042))
-- Unnest classes doesn't update inner classes recursively
-  ([#1047](https://github.com/tefra/xsdata/pull/1047))
-- Restore support for optional lists
-  ([#1053](https://github.com/tefra/xsdata/pull/1053))
+- Reset attr types derived from missing simple types
+  ([#1062](https://github.com/tefra/xsdata/pull/1062))
diff --git a/xsdata/__init__.py b/xsdata/__init__.py
index 71d0859f4..60b8485d7 100644
--- a/xsdata/__init__.py
+++ b/xsdata/__init__.py
@@ -1 +1 @@
-__version__ = "24.6.1"
+__version__ = "24.7"
diff --git a/xsdata/formats/dataclass/parsers/nodes/union.py b/xsdata/formats/dataclass/parsers/nodes/union.py
index 6839ad581..b1e9b5070 100644
--- a/xsdata/formats/dataclass/parsers/nodes/union.py
+++ b/xsdata/formats/dataclass/parsers/nodes/union.py
@@ -74,7 +74,7 @@ def filter_candidates(self) -> List[Type]:
 
         return list(filter(fixed_attribute, candidates))
 
-    def filter_fixed_attrs(self, candidate: Type, parent_ns: str) -> bool:
+    def filter_fixed_attrs(self, candidate: Type, parent_ns: Optional[str]) -> bool:
         """Return whether the node attrs are incompatible with fixed attrs.
 
         Args: