MongoDB C++11 Driver r4.0.0

Added

• Getter for the start_at_operation_time option in mongocxx::v_noabi::options::change_stream.

Changed

• Bump the minimum required C Driver version to 1.29.0.
• CMake option ENABLE_TESTS is now OFF by default.
  • Set ENABLE_TESTS=ON to re-enable building test targets.
  • Set BUILD_TESTING=ON to include test targets in the "all" target when ENABLE_TESTS=ON (since 3.9.0, OFF by default).
• Layout of mongocxx::v_noabi::options::change_stream to support the new optional start_at_operation_time accessor.

Deprecated

• Support for MongoDB Server 4.0.
  • See: MongoDB Software Lifecycle Schedules.

Removed

• Support for external polyfill libraries.
  • ENABLE_BSONCXX_POLY_USE_IMPLS=ON is now implicit behavior.
  • The following CMake options are no longer supported:
    • ENABLE_BSONCXX_POLY_USE_IMPLS
    • BSONCXX_POLY_USE_MNMLSTC
    • BSONCXX_POLY_USE_MNMLSTC_SYSTEM
    • BSONCXX_POLY_USE_BOOST
• Support for CMake option MONGOCXX_OVERRIDE_DEFAULT_INSTALL_PREFIX.
  • MONGOCXX_OVERRIDE_DEFAULT_INSTALL_PREFIX=OFF is now implicit behavior.
• Redeclarations of bsoncxx::stdx interfaces in the mongocxx::stdx namespace.
  • Use bsoncxx::stdx::optional<T> instead of mongocxx::stdx::optional<T>.
  • Use bsoncxx::stdx::string_view instead of mongocxx::stdx::string_view.
• Inline namespace macros for bsoncxx and mongocxx namespace: *_INLINE_NAMESPACE_*.
• The <bsoncxx/stdx/make_unique.hpp> header.
• The <bsoncxx/types/value.hpp> header.
• The <bsoncxx/util/functor.hpp> header.
• The <mongocxx/options/create_collection.hpp> header.
• References to deprecated utf8 which have equivalent string alternatives.
  • k_utf8 in bsoncxx::v_noabi::type. Use k_string instead.
  • b_utf8 in bsoncxx::v_noabi::types. Use b_string instead.
  • get_utf8 in bsoncxx::v_noabi::document::element, bsoncxx::v_noabi::array::element, and bsoncxx::v_noabi::types::bson_value::view. Use get_string instead.
  • k_cannot_append_utf8 and k_need_element_type_k_utf8 in bsoncxx::v_noabi::exception::error_code. Use k_cannot_append_string and k_need_element_type_k_string instead.
• Undocumented using-directives and using-declarations.
  • bsoncxx::builder::types in <bsoncxx/builder/list.hpp>. Use bsoncxx::types in <bsoncxx/types.hpp> instead.
  • bsoncxx::builder::stream::concatenate in <bsoncxx/builder/stream/helpers.hpp>. Use bsoncxx::builder::concatenate in <bsoncxx/builder/concatenate.hpp> instead.
  • mongocxx::events::read_preference in <mongocxx/events/topology_description.hpp>. Use mongocxx::read_preference in <mongocxx/read_preference.hpp> instead.

See the full list of changes in Jira and upgrade guide

Feedback

To report a bug or request a feature, please open a ticket in the MongoDB issue management tool Jira:

• Create an account and login.
• Navigate to the CXX project
• Click Create.

Signature Verification

Release artifacts may be verified by using the accompanying detached signature (.asc) and the cpp-driver public key obtained from https://pgp.mongodb.com.