Clarinet has been migrated from Hiro Systems to Stacks Labs. - [@hirosystems/clarinet-sdk](https://www.npmjs.com/package/@hirosystems/clarinet-sdk) at `3.8.1` - [@stacks/clarinet-sdk](https://www.npmjs.com/package/@stacks/clarinet-sdk) at `3.9.1` The latter provides full support for Clarity 4.