• We now link our mocking libraries against GoogleTest in CMake.

  The mocking libraries require GoogleTest. Not linking GoogleTest was a bug.
  This bug surfaced in versions of CMake >= 3.30.

  Note that the mocking libraries are built by default. If you want to opt-out
  of building or installing the mocking libraries, you can supply
  -DGOOGLE_CLOUD_CPP_WITH_MOCKS=OFF to your CMake configure command.

  If your build fails because GoogleTest is not found, supply
  -DGOOGLE_CLOUD_CPP_WITH_MOCKS=OFF as mentioned above.

• We have stopped testing on CentOS 7, Debian 10 (Buster), and RockyLinux 8 as
  these distros are EOL or in some form of "security only" support period.
  Note that we used CentOS 7 as a proxy for testing RedHat Enterprise Linux 7.

BREAKING TESTING CHANGES

If you don't mock Long Running Operations (LRO) in your tests, then these
changes will not affect you.

With the promotion from Experimental to GA of the new methods to support
starting Long Running Operations (LRO) synchronously and awaiting their
completion separately, the use of ExperimentalTag is no longer required. The
overload set for LRO methods has changed and may require matchers to
disambiguate invocations of EXPECT_CALL
(https://google.github.io/googletest/gmock_cook_book.html#SelectOverload).

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Developer Connect API
• Privileged Access Manager API

The following experimental libraries are now available:

• Cloud BigQuery Control API -
  This library provides support for the Dataset, Job, Model, Project, Routine,
  RowAccessPolicy, and Table REST resources.

OpenTelemetry

• fix(otel): avoid crashes in tracing wrappers for streams (#14477)

Bazel

The --io_opentelemetry_cpp//api:with_abseil flag was marked as deprecated in
OpenTelemetry v1.16.0. It may be removed in future versions.

In previous versions of opentelemetry-cpp, this flag was required for
compatibility with Abseil. It is no longer necessary, as opentelemetry-cpp is
compiled with Abseil by default.

We have stopped using the flag to validate Bazel build configurations with
OpenTelemetry tracing enabled.

If you are building google-cloud-cpp with opentelemetry-cpp < v1.16.0, you
will need to supply the flag for compatibility with Abseil. The following can be
added to your .bazelrc file.

build --@io_opentelemetry_cpp//api:with_abseil

Spanner

• feat(spanner): add samples for instance partitions (#14574)

Storage

• fix(storage): reset backoff after partial write (#14473)
• feat(storage): single span for ReadObject() (#14435)
• fix(storage): only backoff before resume attempts (#14427)

Common Libraries

• Promoted to GA, functions to start a LRO (longrunning operation) in one
  function call, and then await the LRO to complete on a separate function.
• feat(generator): include request in async streaming RPC logs (#14565)
• fix(common): censor Bearer tokens over HTTP/2 (#14564)
• fix(common): json_fwd.h is not always available (#14439)
• fix: workaround missing SHA256 macros in MinGW-w64 (#14437)

BREAKING TESTING CHANGES

If you don't mock Long Running Operations (LRO) in your tests, then these
changes will not affect you.

With the addition of new methods to support starting Long Running Operations
(LRO) synchronously and awaiting their completion separately, the overload set
for the preexisting LRO methods have been expanded. Uses of EXPECT_CALL that
do not have matchers for the arguments will be ambiguous. To quickly remedy this
change instances of EXPECT_CALL(*mock, Method) to
EXPECT_CALL(*mock, Method(::testing::_)).

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Managed Kafka API

Updated Libraries

• Discovery Engine:
  • ControlServiceClient added
  • GroundedGenerationServiceClient added
  • ProjectServiceClient added
  • RankServiceClient added

Bigtable

• docs(bigtable): include admin options (#14358)

Pub/Sub

• docs(pubsub): include admin options (#14359)

Spanner

• docs(spanner): include admin options (#14360)

Storage

• feat(storage): support object retention (#14351)
• feat(storage): buckets with object retention (#14350)

StorageControl

• samples(storagecontrol): add storagecontrol managed folder samples (#14356)
• samples(storagecontrol): add storagecontrol folder samples (#14332)

Common Libraries

• New (experimental) functions to start a LRO (longrunning operation) in one
  function call, and then awaiting for the LRO to complete on a separate
  function.
• fix(otel): async read stream tracing (#14393)
• fix(otel): async write stream tracing (#14394)
• feat(otel): capture error message in traces (again) (#14389)
• doc: document Start and Await methods and mocks (#14375)
• fix(otel): async read write stream tracing (#14379)

Google APIs interface definitions

• This release is based on definitions as of 2024-06-24T13:34:42-07:00

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Public Certificate Authority API

Updated Libraries

• KMS - new AutokeyClient and AutokeyAdminClient

Pub/Sub

• docs(pubsub): add optimistic subscribe example (#14272)

Spanner

• feat(spanner): add Interval justification (#14123)
• fix(spanner): correct use of Interval offset in Timestamp addition (#14121)
• feat(spanner): add Interval/Timestamp/time-zone operations (#14120)

Security Center

• feat(securitycenter): re-enable on windows (#14282)

Storage

• feat(storage): Respect custom endpoint for SignedUrl (#14179)

Common Libraries

• fix(bazel): do not reference repo name (#14287)
• fix(common): support libc++ >= 18.1 (#14151)
• fix(common): out of range access in handle cleanup (#14134)

Google APIs interface definitions

• This release is based on definitions as of 2024-05-22T18:51:58-07:00

No longer testing with MSVC 2019

We have stopped testing with MSVC 2019. Microsoft stopped mainstream support for MSVC 2019 in 2024-04. We continue to test with MSVC 2022. We recommend that you update to this version. Note that, in accordance with Google's Foundational C++ support policy, other Google libraries have stopped (or shortly will stop) testing with MSVC 2019 too.

Updated Libraries

• AI Platform API - new FeatureRegistryServiceClient and GenAiTuningServiceClient
• Cloud Dataplex API - new DataScanServiceClient and DataTaxonomyServiceClient
• Cloud SQL Admin API - several new clients:
  • SqlAvailableDatabaseVersionsServiceClient
  • SqlEventsServiceClient
  • SqlIamPoliciesServiceClient
  • SqlInstanceNamesServiceClient
  • SqlRegionsServiceClient
• Content Warehouse - new PipelineServiceClient
• Dataproc - new SessionControllerClient and SessionTemplateControllerClient
• Dialogflow CX API - new GeneratorsClient
• Discovery Engine - several new clients:
  • DataStoreServiceClient
  • EngineServiceClient
  • RecommendationServiceClient
  • SiteSearchEngineServiceClient
• Network Connectivity API - new PolicyBasedRoutingServiceClient
• Retail - new AnalyticsServiceClient

Datastore

• feat(datastore): emulator environment variable (#14100)

Pub/Sub

• fix(pubsub): correctly trace modacks in the unary pull (#14049)

Spanner

• fix(spanner): avoid absl types in public Interval API (#14095)
• feat(spanner): add a representation for the Spanner INTERVAL (#14059)
• fix(spanner): delete idle sessions upon SessionPool destruction (#14012)

Storage

• fix(storage): missing include (#14052)

Storage Control

• docs(storagecontrol): use GetStorageLayout() for quickstart (#14044)
• docs(storagecontrol): update service title (#14042)

Google APIs interface definitions

• This release is based on definitions as of 2024-04-30T21:03:48Z

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• App Hub API
• Backup and DR Service API
• Sovereign Controls by Partners
• Cloud Storage Control API is now GA.

Updated Libraries

• AI Platform API - new
  NotebookServiceClient and PersistentResourceServiceClient
• Cloud Dataplex API - new
  CatalogServiceClient
• Network Services API - new
  DepServiceClient
• SecurityCenter - add v2 version of the library

Bigtable

• fix(bigtable): respect GOOGLE_CLOUD_CPP_OPENTELEMETRY_TRACING (#13748)

Pub/Sub

• docs(pubsub): add kinesis sample (#13593)

Spanner

• feat(spanner): add ExcludeTransactionFromChangeStreamsOption (#13898)
• feat(spanner): add spanner::Value support for TypeCode::FLOAT32 (#13862)
• feat(spanner): add samples for proto columns (#13759)
• feat(spanner): add integration tests for proto columns (#13756)
• feat(spanner): add spanner::Value support for ProtoEnum/ProtoMessage (#13747)
• feat(spanner): add representations for the Spanner PROTO/ENUM types (#13743)
• feat(spanner): add sample for instance-admin managed autoscaler (#13740)

Speech

• fix(speech): enable location specific connections (#13757)

Storage

• fix(storage): preserve full Status in default creds (#13897)
• fix(storage): respect GOOGLE_CLOUD_CPP_OPENTELEMETRY_TRACING (#13766)
• feat(storage): support HNS-enabled buckets (#13753)
• feat(storage): support soft delete timestamps (#13728)

Common Libraries

• feat(common): introduce FieldMaskOption (#13936)
• docs(common): link to system parameters page (#13937)
• feat(common): QuotaUserOption for gRPC-based libs (#13933)
• fix(common): clang-cl needs a const_cast<> (#13891)
• fix(compute): shorten paths for Bazel+MSVC (#13836)
• feat(common): support injecting custom headers (#13829)

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Security Center Management API

Bigtable

• feat: promote EnableServerRetriesOption (#13698)
• feat(bigtable): install mocks library (#13551)

Pub/Sub

• docs(pubsub): add doxygen comment to deprecate handwritten apis (#13585)

Spanner

• feat(spanner): add support for max commit delay (#13562)
• feat: install mocks for spanner, sql, pubsublite (#13548)

Storage

• docs(GCS+gRPC): add contact info (#13688)
• feat(storage): support listing folders as prefixes (#13683)
• feat(storage): support soft-deleted objects (#13644)
• feat(storage): support Bucket soft-delete metadata (#13623)

Common Libraries

• feat: cmake option to skip building mock libraries (#13673)
• feat(generator): support request_id-like fields (#13615)
• docs(common): advertise OAuth2 library (#13614)

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Personalized Service Health

Bigtable

• feat(bigtable): support bigtable routing cookies (#13502)
• feat(bigtable): logging for bulk apply throttling (#13488)

Pub/Sub

• fix(pubsub): install admin mocks (#13537)
• feat(pubsub): add lease management for unary pull (#13428)

Storage

• feat(storage): support UniverseDomainOption (#13471)
• docs(GCS+gRPC): better comments for AsyncConnection (#13424)

Common Libraries

• feat: support UniverseDomainOption in gRPC IAM stub (#13466)
• feat: simplify Bazel initialization (#13411)

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Cloud Quotas

AI Platform/Vertex AI

• feat(aiplatform): add new service proto file (#13325)

Bigtable

• fix(bigtable): use FQDN (#13305)

OpenTelemetry

• feat(otel): capture gRPC response metadata in traces (#13278)

Pub/Sub

• fix(pubsub): get future value before returning (#13241)
• fix(pubsub): pass by reference explicitly (#13220)

Common Libraries

• fix(common): returnable argument to .then() (#13316)
• feat(common): read-write streaming RPCs metadata (#13228)
• fix: respect logging format env var in compute, sql (#13368)

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Distributed Cloud Edge Network API
• Cloud SQL Admin API
• Telecom Network Automation API

Bigtable

• feat(bigtable): throttling for AsyncBulkApply (#13203)
• fix(bigtable): async context propagation for tracing (#13156)
• feat(bigtable): support BulkApply throttling (#13124)

OpenTelemetry

• feat(otel): add Makefile (#13177)
• fix(otel): detach context when single-threaded (#13154)
• fix(otel): reconnect async traces (e.g. LROs) (#13147)

Spanner

• feat: add PG.OID type (#13127)
• feat(spanner): control replicas/regions used in non-transactional reads (#13031)

Vertex AI

• feat(aiplatform): generate new services (#13150)

Common Libraries

• fix(common): use FQDN for the metadata service (#13139)
• feat(common): add GrpcCompressionAlgorithmOption (#13108)
• doc: fix cliffhanger (#13033)

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Secure Source Manager

Compute Engine

• fix(compute): RegionSecurityPoliciesClient::PatchSecurityPolicy added update_mask field.

Memorystore for Redis

New CloudRedisClusterClient.

OpenTelemetry

• doc(otel): add packaging instructions (#13005)
• fix(otel): end async client spans properly (#12919)
• fix(otel): support abseil <= 20210324 (#12993)

Spanner

• feat(spanner): single-RPC, batched commit of mutation groups (#12930)

Common Libraries

• feat(common): mock for AsyncStreamingReadWriteRpc (#12950)
• fix(common): missed using CARootsFilePathOption (#12997)
• fix(generator): do not override default sleeper in streaming-read RPCs (#12920)

Other Changes

• fix(oauth2): only enable via GOOGLE_CLOUD_CPP_ENABLE (#12911)

When compiling with CMake, the oauth2 used to be automatically enabled if GOOGLE_CLOUD_CPP_REST was manually enabled or enabled by a separate library. That made it impossible to shard a build with separate builds for oauth2, storage and compute.