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Release notes

2.0.1

Smaller interactive React preview bundles, and clear errors when a package is too large for the registry.

Released 2026-11-01.

Catalog items are smaller to publish, and packages that are too large for the registry are reported before the upload.

Changed

  • Client bundles of interactive React previews use the minified production build of React. Each bundle is about 1 MB smaller, so more components and patterns fit the registry request limit.
  • The workspace no longer shows React development warnings in previews. To get them back, set minify: false and a development process.env.NODE_ENV in hooks.clientBuildConfig, then rebuild with --force. See Hooks.

Fixed

  • publish stops before the upload when a package is larger than the 4.5 MB registry limit, and names the largest files.
  • A 413 response from the registry shows a clear "too large" message.

Breaking changes

None.

Upgrade

Install handoff-app@2.0.1. No migration is needed. Republish items that failed with a size error.

2.1.0

Custom previews in the registry, a previews-only token scope, and publishing of components and patterns above 4.5 MB.

2.0.0

Handoff 2 adds a shared registry, publish and checkout, MCP, an AI assistant, one catalog API, and config profiles.

On this page

ChangedFixedBreaking changesUpgrade