# v3.2.0 Released on 2018-08-20. Feature release. All changes are backward-compatible. - Adds a [SAX interface](../../features/parsing/sax_interface.md) and a non-recursive parser. - Adds parsing from wide-string types (`std::wstring`, `std::u16string`, `std::u32string`), conversion to `std::string_view` (C++17), and round-tripping of `std::map`/`std::unordered_map` with non-string keys. [Full release notes](https://github.com/nlohmann/json/releases/tag/v3.2.0). ## API changes