diff --git a/.chronus/changes/fix-serialization-error-2024-4-31-14-35-50.md b/.chronus/changes/fix-serialization-error-2024-4-31-14-35-50.md
deleted file mode 100644
index 953ce6920d6..00000000000
--- a/.chronus/changes/fix-serialization-error-2024-4-31-14-35-50.md
+++ /dev/null
@@ -1,8 +0,0 @@
----
-changeKind: fix
-packages:
-  - "@autorest/python"
-  - "@azure-tools/typespec-python"
----
-
-Fix serialization error when setting model property with `azure.core.serialization.NULL`.
diff --git a/.chronus/changes/fix_body_root-2024-4-31-12-40-38.md b/.chronus/changes/fix_body_root-2024-4-31-12-40-38.md
deleted file mode 100644
index fec8c3a4516..00000000000
--- a/.chronus/changes/fix_body_root-2024-4-31-12-40-38.md
+++ /dev/null
@@ -1,8 +0,0 @@
----
-changeKind: fix
-packages:
-  - "@autorest/python"
-  - "@azure-tools/typespec-python"
----
-
-don't lowercase serialized names when building a body from splatted arguments
\ No newline at end of file
diff --git a/packages/autorest.python/CHANGELOG.md b/packages/autorest.python/CHANGELOG.md
index abb41db36f0..754f355b719 100644
--- a/packages/autorest.python/CHANGELOG.md
+++ b/packages/autorest.python/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Release
 
+## 6.13.18
+
+### Bug Fixes
+
+- [#2607](https://github.com/Azure/autorest.python/pull/2607) Fix serialization error when setting model property with `azure.core.serialization.NULL`.
+- [#2608](https://github.com/Azure/autorest.python/pull/2608) don't lowercase serialized names when building a body from splatted arguments
+
+
 ## 2024-05-11 - 6.13.17
 
 | Library                                                                 | Min Version |
diff --git a/packages/autorest.python/package.json b/packages/autorest.python/package.json
index 330f4e1a86e..36e3d364785 100644
--- a/packages/autorest.python/package.json
+++ b/packages/autorest.python/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@autorest/python",
-  "version": "6.13.17",
+  "version": "6.13.18",
   "description": "The Python extension for generators in AutoRest.",
   "scripts": {
     "prepare": "node run-python3.js prepare.py",
diff --git a/packages/typespec-python/CHANGELOG.md b/packages/typespec-python/CHANGELOG.md
index 757d81fa7ad..a6683b6faab 100644
--- a/packages/typespec-python/CHANGELOG.md
+++ b/packages/typespec-python/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Release
 
+## 0.23.13
+
+### Bug Fixes
+
+- [#2607](https://github.com/Azure/autorest.python/pull/2607) Fix serialization error when setting model property with `azure.core.serialization.NULL`.
+- [#2608](https://github.com/Azure/autorest.python/pull/2608) don't lowercase serialized names when building a body from splatted arguments
+
+
 ## 0.23.12
 
 ### Bug Fixes
diff --git a/packages/typespec-python/package.json b/packages/typespec-python/package.json
index 92e9896f613..a437ce4aef0 100644
--- a/packages/typespec-python/package.json
+++ b/packages/typespec-python/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@azure-tools/typespec-python",
-  "version": "0.23.12",
+  "version": "0.23.13",
   "author": "Microsoft Corporation",
   "description": "TypeSpec emitter for Python SDKs",
   "homepage": "https://github.com/Azure/autorest.python",