# What changed in otpauth

> 2 changes in otpauth 9 from its official release notes, upgrade guides and advisories: 1 new APIs and options. Each one cited. Sources checked 2026-10-18. HTML: https://unstale.sh/npm/otpauth/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## otpauth 9

### New APIs and options

- Adds support for custom HMAC implementations. (9.5.0) — [release notes](https://github.com/hectorm/otpauth/releases/tag/v9.5.0)

### Tooling

- Adds a bare build. (9.5.0) — [release notes](https://github.com/hectorm/otpauth/releases/tag/v9.5.0)