v3.11.3¶

Released on 2023-11-28.

Adds features and fixes bugs found in 3.11.2. All changes are backward-compatible.

• Adds a custom base class as a node customization point.
• Adds serialization-only conversion macros (NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE and NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE) and a clearer parse error for empty input.
• Adds Bazel and Swift Package Manager build support.
• Fixes custom allocators, a memory leak in adl_serializer's to_json, initializer-list construction when size_type is not int, and many compiler warnings.

Full release notes.

API changes¶

Added (2 pages):

• basic_json: json_base_class_t
• macros: JSON_HAS_STATIC_RTTI

Changed:

• NLOHMANN_DEFINE_TYPE_INTRUSIVE, NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT, NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE: Overload 3 added.
• NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE, NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT, NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE: Overload 3 added.