# v3.1.1

Released on 2018-02-13.

Bug-fix release. All changes are backward-compatible.

- Fixes parsing of indefinite-length CBOR strings, a user-defined conversion to vector types, and overflow detection for UBJSON containers.

[Full release notes](https://github.com/nlohmann/json/releases/tag/v3.1.1).

## API changes

No documented API changes.