# v2.0.0

Released on 2016-06-24.

Feature release with a minor (potentially non-backward-compatible) API change from added `noexcept`
and `constexpr` specifiers.

- Adds [JSON Pointer](../../features/json_pointer.md) support in [`at`](../../api/basic_json/at.md) and
  [`operator[]`](../../api/basic_json/operator%5B%5D.md), plus [`flatten`](../../api/basic_json/flatten.md)
  and [`unflatten`](../../api/basic_json/unflatten.md).
- Adds [JSON Patch](../../features/json_patch.md) via [`diff`](../../api/basic_json/diff.md) and
  [`patch`](../../api/basic_json/patch.md), unsigned 64-bit integer support, and locale-independent
  serialization.

[Full release notes](https://github.com/nlohmann/json/releases/tag/v2.0.0).

## API changes

<!-- api-changes -->