diff --git a/botocore-1.40.64.tar.gz b/botocore-1.40.66.tar.gz
similarity index 62%
rename from botocore-1.40.64.tar.gz
rename to botocore-1.40.66.tar.gz
index b0a61119b0fa3a07555441a071b0b8231a69c253..c2a1e24e88142676d536be219ac8e0eb595ad910 100644
Binary files a/botocore-1.40.64.tar.gz and b/botocore-1.40.66.tar.gz differ
diff --git a/python-botocore.spec b/python-botocore.spec
index 0b990465ccc4568aab3477d6f346a3d864b77801..96fcda6ddacb889129ab49745c292e5c463622a5 100644
--- a/python-botocore.spec
+++ b/python-botocore.spec
@@ -1,6 +1,6 @@
 %global _empty_manifest_terminate_build 0
 Name:		python-botocore
-Version:	1.40.64
+Version:	1.40.66
 Release:	1
 Summary:	Low-level, data-driven core of boto 3.
 License:	Apache-2.0
@@ -80,6 +80,12 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Fri Nov 7 2025 wuzhaomin <wuzhaomin@kylinos.cn> - 1.40.66-1
+- Upgrade to the latest version 1.40.66
+- Update Python 3.14 version in CI and tox
+- Refactor mocking of credentials resolvers for user agent tests
+- Update endpoints model
+
 * Mon Nov 3 2025 Hann <hannannan@kylinos.cn> - 1.40.64-1
 - Upgrade to the latest version 1.40.64
 - Update endpoint ruleset parameters casing