v1.17.0 Release

Bigtable

• doc: update quickstart README files (#4980)

Storage

BREAKING CHANGES

• fix(storage)!: use nlohmann_json library as any other dependency (#4747)
  • After this change applications using CMake must install the
    nlohmann_json library. Automatically downloading
    the library (a) creates problems for package maintainers, (b) requires
    brittle code to keep the symbols from leaking, and (c) creates problems
    for users that need newer versions of this library, for example, because
    they are using a compiler that was not supported by the version we pick.
    • Applications using Bazel or CMake super builds should not be impacted.
    • We have updated our instructions to install this library from source on
      multiple Linux distributions.
    • Applications using a package manager will need to update their build
      scripts to add this dependency.
  • In addition, this removes a number of symbols in the
    google_cloud_cpp_internal_nlohmman_json_3_4_0:: namespace.
    Obviously we never intended these symbols for public use, but we
    should have been clearer about it.

Other Changes

• doc: update quickstart README files (#4980)
• feat(storage): custom_time in ObjectMetadata (#4901)
• feat(storage): noncurrent and custom time OLM (#4871)
• fix: cmake configs missing find_dependency(abseil) (#4919)

Spanner

• doc(spanner): add samples for "datatypes" region tags (#4999)
• doc: update quickstart README files (#4855) (#4980)
• fix(spanner): correct variable used to build instance config (#4791)

Common Libraries

• feat: add a KmsKeyName class (#4891)
• feat: automatically create background thread pools (#4936)
• fix: clang-tidy works on all headers (#4844)
• fix: cmake configs missing find_dependency(abseil) (#4919)