docs(release): update changelog for the 2026-01 release (#15881)

Author: scotthart

CHANGELOG.md

@@ -4,7 +4,20 @@
 breaking changes in the upcoming 3.x release. This release is scheduled for
 2024-12 or 2025-01.
 
-## v2.46.0 - TBD
+## v2.46.0 - 2026-01
+
+### [Spanner](/google/cloud/spanner/README.md)
+
+- feat(spanner): enable UUID data type ([#15867](https://github.com/googleapis/google-cloud-cpp/pull/15867))
+
+### [Storage](/google/cloud/storage/README.md)
+
+- feat(storage): Add full object checksum validation at finalization for json path ([#15815](https://github.com/googleapis/google-cloud-cpp/pull/15815))
+- feat(storage): add support for bucket encryption enforcement config ([#15844](https://github.com/googleapis/google-cloud-cpp/pull/15844))
+
+### [Google APIs interface definitions](https://github.com/googleapis/googleapis)
+
+- This release is based on definitions as of [2026-01-09T11:37:16-08:00](https://github.com/googleapis/googleapis/tree/6145b5ffe99d290c3d840136f310490d732acb04)
 
 ## v2.45.0 - 2025-12-17
 

CMakeLists.txt

@@ -23,7 +23,7 @@ project(
     google-cloud-cpp
     VERSION 2.46.0
     LANGUAGES CXX)
-set(PROJECT_VERSION_PRE_RELEASE "rc")
+set(PROJECT_VERSION_PRE_RELEASE "")
 
 if (NOT "${PROJECT_VERSION_PRE_RELEASE}" STREQUAL "")
     set(PROJECT_VERSION "${PROJECT_VERSION}-${PROJECT_VERSION_PRE_RELEASE}")

MODULE.bazel

@@ -16,7 +16,7 @@
 
 module(
     name = "google_cloud_cpp",
-    version = "2.46.0-rc",  # Updated by CMake
+    version = "2.46.0",  # Updated by CMake
     compatibility_level = 2,  # Updated by CMake
 )
 

google/cloud/internal/version_info.h

@@ -21,6 +21,6 @@
 #define GOOGLE_CLOUD_CPP_VERSION_MINOR 46
 // NOLINTNEXTLINE(modernize-macro-to-enum)
 #define GOOGLE_CLOUD_CPP_VERSION_PATCH 0
-#define GOOGLE_CLOUD_CPP_VERSION_PRE_RELEASE "rc"
+#define GOOGLE_CLOUD_CPP_VERSION_PRE_RELEASE ""
 
 #endif  // GOOGLE_CLOUD_CPP_GOOGLE_CLOUD_INTERNAL_VERSION_INFO_H