diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 3b98247a6..5d6de8de9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,8 +1,8 @@
 {
-  "libs/client-sdk": "3.10.0",
+  "libs/client-sdk": "3.10.1",
   "libs/server-sent-events": "0.5.5",
   "libs/common": "1.10.0",
-  "libs/internal": "0.12.0",
-  "libs/server-sdk": "3.9.0",
-  "libs/server-sdk-redis-source": "2.1.19"
+  "libs/internal": "0.12.1",
+  "libs/server-sdk": "3.9.1",
+  "libs/server-sdk-redis-source": "2.1.20"
 }
diff --git a/libs/client-sdk/CHANGELOG.md b/libs/client-sdk/CHANGELOG.md
index 13fca96cd..daffb5cce 100644
--- a/libs/client-sdk/CHANGELOG.md
+++ b/libs/client-sdk/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## [3.10.1](https://github.com/launchdarkly/cpp-sdks/compare/launchdarkly-cpp-client-v3.10.0...launchdarkly-cpp-client-v3.10.1) (2025-10-10)
+
+
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * launchdarkly-cpp-internal bumped from 0.12.0 to 0.12.1
+
 ## [3.10.0](https://github.com/launchdarkly/cpp-sdks/compare/launchdarkly-cpp-client-v3.9.0...launchdarkly-cpp-client-v3.10.0) (2025-06-04)
 
 
diff --git a/libs/client-sdk/CMakeLists.txt b/libs/client-sdk/CMakeLists.txt
index bb5e91440..4c1210907 100644
--- a/libs/client-sdk/CMakeLists.txt
+++ b/libs/client-sdk/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.19)
 
 project(
         LaunchDarklyCPPClient
-        VERSION 3.10.0 # {x-release-please-version}
+        VERSION 3.10.1 # {x-release-please-version}
         DESCRIPTION "LaunchDarkly C++ Client SDK"
         LANGUAGES CXX C
 )
diff --git a/libs/client-sdk/include/launchdarkly/client_side/client.hpp b/libs/client-sdk/include/launchdarkly/client_side/client.hpp
index 6d42c3bfc..70b83e0fb 100644
--- a/libs/client-sdk/include/launchdarkly/client_side/client.hpp
+++ b/libs/client-sdk/include/launchdarkly/client_side/client.hpp
@@ -345,7 +345,7 @@ class Client : public IClient {
 
    private:
     inline static char const* const kVersion =
-        "3.10.0";  // {x-release-please-version}
+        "3.10.1";  // {x-release-please-version}
     std::unique_ptr<IClient> client;
 };
 
diff --git a/libs/client-sdk/package.json b/libs/client-sdk/package.json
index 755adeaa1..1d37e43ed 100644
--- a/libs/client-sdk/package.json
+++ b/libs/client-sdk/package.json
@@ -1,10 +1,10 @@
 {
   "name": "launchdarkly-cpp-client",
   "description": "This package.json exists for modeling dependencies for the release process.",
-  "version": "3.10.0",
+  "version": "3.10.1",
   "private": true,
   "dependencies": {
-    "launchdarkly-cpp-internal": "0.12.0",
+    "launchdarkly-cpp-internal": "0.12.1",
     "launchdarkly-cpp-common": "1.10.0",
     "launchdarkly-cpp-sse-client": "0.5.5"
   }
diff --git a/libs/client-sdk/tests/client_c_bindings_test.cpp b/libs/client-sdk/tests/client_c_bindings_test.cpp
index afce7c1e1..5cb979467 100644
--- a/libs/client-sdk/tests/client_c_bindings_test.cpp
+++ b/libs/client-sdk/tests/client_c_bindings_test.cpp
@@ -27,7 +27,7 @@ TEST(ClientBindings, MinimalInstantiation) {
 
     char const* version = LDClientSDK_Version();
     ASSERT_TRUE(version);
-    ASSERT_STREQ(version, "3.10.0");  // {x-release-please-version}
+    ASSERT_STREQ(version, "3.10.1");  // {x-release-please-version}
 
     LDClientSDK_Free(sdk);
 }
diff --git a/libs/client-sdk/tests/client_test.cpp b/libs/client-sdk/tests/client_test.cpp
index 28697165f..d45c4bf55 100644
--- a/libs/client-sdk/tests/client_test.cpp
+++ b/libs/client-sdk/tests/client_test.cpp
@@ -16,7 +16,7 @@ TEST(ClientTest, ClientConstructedWithMinimalConfigAndContext) {
 
     char const* version = client.Version();
     ASSERT_TRUE(version);
-    ASSERT_STREQ(version, "3.10.0");  // {x-release-please-version}
+    ASSERT_STREQ(version, "3.10.1");  // {x-release-please-version}
 }
 
 TEST(ClientTest, AllFlagsIsEmpty) {
diff --git a/libs/internal/CHANGELOG.md b/libs/internal/CHANGELOG.md
index 6e20bfa06..3cf302038 100644
--- a/libs/internal/CHANGELOG.md
+++ b/libs/internal/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.12.1](https://github.com/launchdarkly/cpp-sdks/compare/launchdarkly-cpp-internal-v0.12.0...launchdarkly-cpp-internal-v0.12.1) (2025-10-10)
+
+
+### Bug Fixes
+
+* Ensure that serialization of a variation or rollout uses the correct overload. ([#483](https://github.com/launchdarkly/cpp-sdks/issues/483)) ([b598803](https://github.com/launchdarkly/cpp-sdks/commit/b5988039e986ea50c5a165bd5c388f205a7876bd))
+
 ## [0.12.0](https://github.com/launchdarkly/cpp-sdks/compare/launchdarkly-cpp-internal-v0.11.0...launchdarkly-cpp-internal-v0.12.0) (2025-06-04)
 
 
diff --git a/libs/internal/package.json b/libs/internal/package.json
index 9c3bd8774..457d29854 100644
--- a/libs/internal/package.json
+++ b/libs/internal/package.json
@@ -1,7 +1,7 @@
 {
   "name": "launchdarkly-cpp-internal",
   "description": "This package.json exists for modeling dependencies for the release process.",
-  "version": "0.12.0",
+  "version": "0.12.1",
   "private": true,
   "dependencies": {
     "launchdarkly-cpp-common": "1.10.0"
diff --git a/libs/server-sdk-redis-source/CHANGELOG.md b/libs/server-sdk-redis-source/CHANGELOG.md
index e06848abe..54aadecc9 100644
--- a/libs/server-sdk-redis-source/CHANGELOG.md
+++ b/libs/server-sdk-redis-source/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## [2.1.20](https://github.com/launchdarkly/cpp-sdks/compare/launchdarkly-cpp-server-redis-source-v2.1.19...launchdarkly-cpp-server-redis-source-v2.1.20) (2025-10-10)
+
+
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * launchdarkly-cpp-server bumped from 3.9.0 to 3.9.1
+
 ## [2.1.19](https://github.com/launchdarkly/cpp-sdks/compare/launchdarkly-cpp-server-redis-source-v2.1.18...launchdarkly-cpp-server-redis-source-v2.1.19) (2025-06-04)
 
 
diff --git a/libs/server-sdk-redis-source/CMakeLists.txt b/libs/server-sdk-redis-source/CMakeLists.txt
index d4b0dce90..f687dc716 100644
--- a/libs/server-sdk-redis-source/CMakeLists.txt
+++ b/libs/server-sdk-redis-source/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.19)
 
 project(
         LaunchDarklyCPPServerRedisSource
-        VERSION 2.1.19 # {x-release-please-version}
+        VERSION 2.1.20 # {x-release-please-version}
         DESCRIPTION "LaunchDarkly C++ Server SDK Redis Source"
         LANGUAGES CXX C
 )
diff --git a/libs/server-sdk-redis-source/package.json b/libs/server-sdk-redis-source/package.json
index 082312531..4eeb2eec8 100644
--- a/libs/server-sdk-redis-source/package.json
+++ b/libs/server-sdk-redis-source/package.json
@@ -1,9 +1,9 @@
 {
   "name": "launchdarkly-cpp-server-redis-source",
   "description": "This package.json exists for modeling dependencies for the release process.",
-  "version": "2.1.19",
+  "version": "2.1.20",
   "private": true,
   "dependencies": {
-    "launchdarkly-cpp-server": "3.9.0"
+    "launchdarkly-cpp-server": "3.9.1"
   }
 }
diff --git a/libs/server-sdk/CHANGELOG.md b/libs/server-sdk/CHANGELOG.md
index 135186cdd..accbd3519 100644
--- a/libs/server-sdk/CHANGELOG.md
+++ b/libs/server-sdk/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## [3.9.1](https://github.com/launchdarkly/cpp-sdks/compare/launchdarkly-cpp-server-v3.9.0...launchdarkly-cpp-server-v3.9.1) (2025-10-10)
+
+
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * launchdarkly-cpp-internal bumped from 0.12.0 to 0.12.1
+
 ## [3.9.0](https://github.com/launchdarkly/cpp-sdks/compare/launchdarkly-cpp-server-v3.8.2...launchdarkly-cpp-server-v3.9.0) (2025-06-04)
 
 
diff --git a/libs/server-sdk/CMakeLists.txt b/libs/server-sdk/CMakeLists.txt
index 7531ed997..2e2f718af 100644
--- a/libs/server-sdk/CMakeLists.txt
+++ b/libs/server-sdk/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.19)
 
 project(
         LaunchDarklyCPPServer
-        VERSION 3.9.0 # {x-release-please-version}
+        VERSION 3.9.1 # {x-release-please-version}
         DESCRIPTION "LaunchDarkly C++ Server SDK"
         LANGUAGES CXX C
 )
diff --git a/libs/server-sdk/include/launchdarkly/server_side/client.hpp b/libs/server-sdk/include/launchdarkly/server_side/client.hpp
index 7ec2a8bfb..c74b48dc2 100644
--- a/libs/server-sdk/include/launchdarkly/server_side/client.hpp
+++ b/libs/server-sdk/include/launchdarkly/server_side/client.hpp
@@ -360,7 +360,7 @@ class Client : public IClient {
 
    private:
     inline static char const* const kVersion =
-        "3.9.0";  // {x-release-please-version}
+        "3.9.1";  // {x-release-please-version}
     std::unique_ptr<IClient> client;
 };
 
diff --git a/libs/server-sdk/package.json b/libs/server-sdk/package.json
index 7c1c1387e..0122aa3c8 100644
--- a/libs/server-sdk/package.json
+++ b/libs/server-sdk/package.json
@@ -1,10 +1,10 @@
 {
   "name": "launchdarkly-cpp-server",
   "description": "This package.json exists for modeling dependencies for the release process.",
-  "version": "3.9.0",
+  "version": "3.9.1",
   "private": true,
   "dependencies": {
-    "launchdarkly-cpp-internal": "0.12.0",
+    "launchdarkly-cpp-internal": "0.12.1",
     "launchdarkly-cpp-common": "1.10.0",
     "launchdarkly-cpp-sse-client": "0.5.5"
   }
diff --git a/libs/server-sdk/tests/client_test.cpp b/libs/server-sdk/tests/client_test.cpp
index 55d03cedf..820ae5ca6 100644
--- a/libs/server-sdk/tests/client_test.cpp
+++ b/libs/server-sdk/tests/client_test.cpp
@@ -20,7 +20,7 @@ class ClientTest : public ::testing::Test {
 TEST_F(ClientTest, ClientConstructedWithMinimalConfigAndContextT) {
     char const* version = client_.Version();
     ASSERT_TRUE(version);
-    ASSERT_STREQ(version, "3.9.0");  // {x-release-please-version}
+    ASSERT_STREQ(version, "3.9.1");  // {x-release-please-version}
 }
 
 TEST_F(ClientTest, BoolVariationDefaultPassesThrough) {
diff --git a/libs/server-sdk/tests/server_c_bindings_test.cpp b/libs/server-sdk/tests/server_c_bindings_test.cpp
index 4127a244a..1aadcf820 100644
--- a/libs/server-sdk/tests/server_c_bindings_test.cpp
+++ b/libs/server-sdk/tests/server_c_bindings_test.cpp
@@ -24,7 +24,7 @@ TEST(ClientBindings, MinimalInstantiation) {
 
     char const* version = LDServerSDK_Version();
     ASSERT_TRUE(version);
-    ASSERT_STREQ(version, "3.9.0");  // {x-release-please-version}
+    ASSERT_STREQ(version, "3.9.1");  // {x-release-please-version}
 
     LDServerSDK_Free(sdk);
 }