v1.4.0

[1.4.0] - 2026-06-26

What's New

• Added events get --event-id <id> to fetch a single event by its ID.
• Added the --project-api-key flag and HH_PROJECT_API_KEY environment variable as the primary way to authenticate the CLI. Verbose output now labels the key as Project API key: (previously API Key:).
• experiments list-runs, experiments get-run, and experiments get-summary output now includes the linked dataset_name, and get-summary now reports dataset_id for offline (EXT-*) datasets that previously returned null.

Fixes & Improvements

• events update --outputs now requires an object or null (where null preserves the existing outputs); non-object values (strings, arrays, scalars) are rejected up front. These values were previously accepted but corrupted the stored event, which could break other consumers reading it back.

Compatibility & Deprecations

• The --api-key flag and HH_API_KEY environment variable are now deprecated aliases for --project-api-key / HH_PROJECT_API_KEY. They still work but log a deprecation warning to stderr and will be removed in the next major version. Migrate to the new names.