chore: preflight 4.0.7 release

CHANGELOG.rst

@@ -2,6 +2,25 @@
 Changelog
 *********
 
+4.0.7 -- 2026-08-31
+===================
+
+Fixes
+-----------
+* fix: validate encryption context entry lengths (#813)
+  `#813 <https://github.com/aws/aws-encryption-sdk-python/pull/813>`_
+
+  Thanks to kiwigitops for the contribution.
+* fix: preserve root-cause errors in KMSMasterKey exception chaining (#815)
+  `#815 <https://github.com/aws/aws-encryption-sdk-python/pull/815>`_
+
+  Thanks to `@arpitjain099 <https://github.com/arpitjain099>`_ for the contribution.
+
+Maintenance
+-----------
+* deps: Extend supported `MPL`_ versions to include v1.11.3
+  `#816 <https://github.com/aws/aws-encryption-sdk-python/pull/816>`_
+
 4.0.6 -- 2026-05-07
 ===================
 

requirements_mpl.txt

@@ -1 +1 @@
-aws-cryptographic-material-providers>=1.7.4,<=1.11.2
+aws-cryptographic-material-providers>=1.7.4,<=1.11.3

setup.py

@@ -43,7 +43,7 @@ def get_requirements():
     license="Apache License 2.0",
     install_requires=get_requirements(),
     extras_require={
-        "MPL": ["aws-cryptographic-material-providers>=1.7.4,<=1.11.2"],
+        "MPL": ["aws-cryptographic-material-providers>=1.7.4,<=1.11.3"],
     },
     classifiers=[
         "Development Status :: 5 - Production/Stable",

src/aws_encryption_sdk/identifiers.py

@@ -17,7 +17,7 @@
     # We only actually need these imports when running the mypy checks
     pass
 
-__version__ = "4.0.6"
+__version__ = "4.0.7"
 USER_AGENT_SUFFIX = "AwsEncryptionSdkPython/{}".format(__version__)
 
 

test_vector_handlers/requirements_mpl.txt

@@ -1 +1 @@
-aws-cryptographic-material-providers>=1.7.4,<=1.11.2
+aws-cryptographic-material-providers>=1.7.4,<=1.11.3