diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e6eadb43e..a042f3d32 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.13.0"
+  ".": "2.13.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a249de66..2cb8e49d3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## [2.13.1](https://github.com/microsoft/OpenAPI.NET/compare/v2.13.0...v2.13.1) (2026-10-23)
+
+
+### Bug Fixes
+
+* **models:** preserve tag collection types and comparers in copy constructors ([#3141](https://github.com/microsoft/OpenAPI.NET/issues/3141)) ([#3145](https://github.com/microsoft/OpenAPI.NET/issues/3145)) ([aa5e2b5](https://github.com/microsoft/OpenAPI.NET/commit/aa5e2b52505a71983f4c0cc16a3b76fb634270d8))
+* **models:** preserve tag collection types and comparers in OpenApiDocument copy constructor ([aa5e2b5](https://github.com/microsoft/OpenAPI.NET/commit/aa5e2b52505a71983f4c0cc16a3b76fb634270d8))
+* Support custom tag ordering and null assignment in OpenApiOperation.Tags ([#3128](https://github.com/microsoft/OpenAPI.NET/issues/3128)) ([#3133](https://github.com/microsoft/OpenAPI.NET/issues/3133)) ([295c89c](https://github.com/microsoft/OpenAPI.NET/commit/295c89ce7d3d7573de6c56d4059cfd92ffec8ff1))
+* support reinitializing OpenApiOperation.Tags to null and custom comparers ([#3116](https://github.com/microsoft/OpenAPI.NET/issues/3116)) ([#3142](https://github.com/microsoft/OpenAPI.NET/issues/3142)) ([9cfcdd2](https://github.com/microsoft/OpenAPI.NET/commit/9cfcdd23c2f177dd8487e6c852dfd908054f1353))
+
 ## [2.13.0](https://github.com/microsoft/OpenAPI.NET/compare/v2.12.2...v2.13.0) (2026-10-19)
 
 
diff --git a/Directory.Build.props b/Directory.Build.props
index 4115d49db..b62999e7b 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -12,7 +12,7 @@
     <PackageProjectUrl>https://github.com/Microsoft/OpenAPI.NET</PackageProjectUrl>
     <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
     <PackageTags>OpenAPI .NET</PackageTags>
-    <Version>2.13.0</Version>
+    <Version>2.13.1</Version>
   </PropertyGroup>
   <!-- https://github.com/clairernovotny/DeterministicBuilds#deterministic-builds -->
   <PropertyGroup Condition="'$(TF_BUILD)' == 'true'">