v1.39.0

BREAKING CHANGES

• Starting with this release Linux and Windows builds based on CMake
  no longer set CMAKE_CXX_STANDARD to 11. We rely on the compiler's
  default C++ language standard. Note that all the compilers we support default
  to C++14.

  • On macOS the default is C++98, as google-cloud-cpp requires C++ >= 11, we continue
    to set CMAKE_CXX_STANDARD on that platform.
  • This only changes the default C++ version, we continue to test and support C++11.
  • For more details, see #6767.

• The following deprecated, legacy IAM classes have been removed:
  google::cloud::IamPolicy, google::cloud::IamBinding,
  google::cloud::IamBindings. They were designed before
  IAM conditions. They did not work with IAM policies
  that include IAM conditions. See #5929 for more details.

• cleanup!: restrict testing_util build visibility (#8584)
• cleanup!: change bazel visibility to private for {tests,quickstarts,examples,samples,benchmarks} (#8578)

Other Changes

• fix: treat kDeadlineExceeded as permanent error in all services (#8525)

Bigtable

BREAKING CHANGES

• InstanceAdmin::GetIamPolicy and InstanceAdmin::SetIamPolicy have been
  retired. If you are affected by this removal, please use
  InstanceAdmin::GetNativeIamPolicy and InstanceAdmin::SetNativeIamPolicy
  instead. See #5929 for more details.

KMS

The library has been expanded to include the following services (#8530):

• External Key Manager

Pub/Sub

• fix(pubsub): increase grpc.max_metadata_size limit (#8626)

Spanner

• feat(spanner): add remaining PostgreSQL samples (#8627)
• feat(spanner): add initial PostgreSQL samples (#8617)
• feat(spanner): integration tests for Database.database_dialect (#8589)
• feat(spanner): integration tests and sample for CopyBackup() (#8574)
• fix(spanner): correct handling of PartialResultSet.resume_token (#8521)
• fix(spanner): capture the ReadRequest by value in the reader factory (#8515)

Storage

BREAKING CHANGES

• Client::GetBucketIamPolicy and Client::SetBucketIamPolicy have been
  retired. If you are affected by this removal, please use
  Client::GetNativeBucketIamPolicy and Client::SetNativeBucketIamPolicy
  instead. See #5929 for more details.
• cleanup(common)!: remove legacy IAM classes (#8667)
• cleanup(storage)!: remove deprecated IAM functions (#8664)
• cleanup!: change storage bazel visibility to private by default (#8583)

Other Changes

• doc(storage): add custom-dual regions example (#8595)
• fix(storage): ParallelUploadFile() and WithObjectMetadata (#8629)
• fix(storage): return an error on short writes (#8562)
• fix(storage): use correct offset and size types (#8538)

Common Libraries

Other Changes

• feat(common): g::c::future support for coroutines (#8532)