chore: prepare for v2.12.0 release (#11902)

Author: coryan

CHANGELOG.md

@@ -108,7 +108,7 @@ info, see [#7463] and [#5976].
 
 </details>
 
-## v2.12.0 - TBD
+## v2.12.0 - 2023-06
 
 ### New Libraries
 
@@ -129,6 +129,22 @@ The Cloud Debugger service (aka Stackdriver Debugger API) has been
 [shutdown][cloud-debugger-deprecated]. The corresponding client library has been
 removed.
 
+### [BigQuery](/google/cloud/bigquery/README.md)
+
+This library has been expanded to include the BigLake API ([#11882](https://github.com/googleapis/google-cloud-cpp/pull/11882))
+
+### [Pub/Sub](/google/cloud/pubsub/README.md)
+
+- doc(pubsub): add new samples for schemas ([#11872](https://github.com/googleapis/google-cloud-cpp/pull/11872))
+  ([#11848](https://github.com/googleapis/google-cloud-cpp/pull/11848))
+  ([#11840](https://github.com/googleapis/google-cloud-cpp/pull/11840))
+
+### [Common Libraries](/google/cloud/README.md)
+
+- docs: use c.g.com/cpp mocking guide ([#11869](https://github.com/googleapis/google-cloud-cpp/pull/11869))
+- docs: link reference docs at c.g.c/cpp/docs/reference ([#11799](https://github.com/googleapis/google-cloud-cpp/pull/11799))
+- fix(generator): correct URL for reference docs ([#11765](https://github.com/googleapis/google-cloud-cpp/pull/11765))
+
 ## v2.11.0 - 2023-06
 
 ### New Libraries

CMakeLists.txt

@@ -23,7 +23,7 @@ project(
     google-cloud-cpp
     VERSION 2.12.0
     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}")

google/cloud/internal/version_info.h

@@ -21,6 +21,6 @@
 #define GOOGLE_CLOUD_CPP_VERSION_MINOR 12
 // 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