Replace @a2ui/lit with @a2ui/web_core 0.9, introduce createCatalog() API for
custom component catalogs, add basic (18 components) and minimal (5 components)
built-in catalogs, CSS variable theming for dark mode, eliminate XSS vector
(dangerouslySetInnerHTML removed from Text component).
Reverts the copy-dts.mjs approach from #3612 in favor of typesVersions
which is the standard Node/TS mechanism for resolving subpath types
under legacy moduleResolution: "node".
- New docs/(root)/migration-guides/ section with migrate-to-v2, migrate-attachments,
migrate-to-1.10.X, migrate-to-1.8.2
- Troubleshooting now only contains error-debugging, observability-connectors, common-issues
- Update all @deprecated JSDoc URLs from /troubleshooting/ to /migration-guides/
- Update doc cross-links (multimodal-attachments page, snippet import)
- Move snippet to snippets/shared/migration-guides/
- Set minimum version to v1.56.0 (was vX.Y.Z placeholder)
- Restore console.error as safety net in processFiles catch blocks (errors no longer
silently vanish when onUploadFailed callback is not provided)
- Add try/catch to useBlobUrl atob() — gracefully handles malformed base64 instead of
crashing the component tree
- Fix DocumentLightboxContent: use blobUrl instead of undefined src variable
- Add .catch() to View Transition API transition.finished promise
- Codemod: preserve actual imageUploadsEnabled value (false, dynamic expressions)
instead of hardcoding true — adds 3 new test cases (18 total)
- Replace all placeholder @deprecated versions (v1.x.0) with @since 1.56.0
- Add missing @since to ImageRenderer, ImageRendererProps, AIMessage.image tags
Attachment queue & previews:
- Image lightbox with View Transition API morph animation
- Video lightbox with native controls and play button overlay
- Document lightbox (PDF via blob URL, text inline, info card fallback)
- Drop zone overlay with upload icon
- Filename preservation via InputContent metadata
- Proper video thumbnail sizing and play/pause indicator
- Fix attachment queue positioning (max-w-3xl constraint)
- Padding between X button and content for audio/document cards
- Document filenames wrap instead of truncating
Attachments config:
- onUploadFailed callback for validation/upload errors (file-too-large, invalid-type, upload-failed)
- onUpload accepts sync or async returns
- AttachmentUploadResult discriminated union with explicit interfaces
- Metadata field on Attachment and onUpload return type
AG-UI version bump:
- Bump @ag-ui/client, @ag-ui/core, @ag-ui/encoder, @ag-ui/proto to 0.0.51
- Remove process.env Vite workaround (fixed upstream in 0.0.51)
Deprecation lifecycle:
- @deprecated JSDoc on all legacy image upload APIs
- ImageRenderer, ImageRendererProps, ImageUpload type, imageUploadsEnabled prop,
inputFileAccept prop, ImageRenderer prop, AIMessage.image, ImageData
- Codemod at codemods/migrate-attachments.ts (15 tests)
- Migration guide updated with codemod instructions and new type shapes
Docs:
- New guide: docs/(root)/multimodal-attachments.mdx
- Updated migration guide with onUpload return type, metadata, codemod section
- Cross-links from prebuilt-components and migration guide
- Label change: "Add photos or files" → "Add attachments"
Tests:
- CopilotChat.attachments.test.tsx — 5 tests for onUploadFailed
- migrate-attachments codemod — 15 tests
Re-export AG-UI multimodal input types (InputContent, TextInputPart, ImageInputPart,
AudioInputPart, VideoInputPart, DocumentInputPart, InputContentSource, etc.) from
@copilotkit/shared. UserMessage is now a plain pass-through of agui.UserMessage,
removing the CopilotKit-specific image?: ImageData extension. ImageData is kept with
@deprecated for backward compatibility with AIMessage.image.
Copies .d.cts → .d.ts after each tsdown build so consumers on
moduleResolution "node" (e.g. DocuSign) can resolve types without
changing their tsconfig. Also points the "types" field back to .d.ts.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
All @copilotkit/* packages were missing type declarations in their exports
map. This meant TypeScript couldn't resolve types for subpath imports like
@copilotkit/react-core/v2 without manual tsconfig paths workarounds
pointing to dist .d.ts files (which no longer exist after the tsup to
tsdown migration).
Uses nested conditional exports to map .d.mts for ESM and .d.cts for CJS
consumers, satisfying both attw and TypeScript module resolution under
nodenext and bundler modes.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@copilotkit/shared was doing `export * from "@copilotkit/license-verifier"`,
which pulled the entire license-verifier bundle (including Node's `crypto`)
into any client-side consumer. This caused "Module not found: Can't resolve
'crypto'" errors for users bundling @copilotkit/react-core for the browser.
Now shared only re-exports types (erased at compile time) and a client-safe
`createLicenseContextValue` inlined without crypto. Runtime imports
`createLicenseChecker` and `getLicenseWarningHeader` directly from
`@copilotkit/license-verifier`.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The previous publish workflow released 1.55.0-next.8 to npm but the
post-release commit failed to push to main (blocked by branch
protection). This applies the version bumps and pre.json updates that
the workflow would have committed, unblocking future releases.
https://claude.ai/code/session_01N8sLK9h9p6FdRjyHqzKzVV
After the V1/V2 consolidation merge, several changesets still referenced
old @copilotkitnext/* package names that no longer exist. Fixed package
references and ran changeset version to apply pending version bumps.
https://claude.ai/code/session_01A5aahBWFTmLPR3xZSeh4SD
Flatten all packages from packages/v1/* and packages/v2/* into packages/* —
every package now lives directly under the @copilotkit/ scope with no v1/v2
subdirectories.
- Move all v1 packages (react-core, react-ui, runtime, shared, etc.) from
packages/v1/* to packages/*
- Absorb v2 react code into packages/react-core/src/v2/ (exported via /v2 subpath)
- Absorb v2 agent code into packages/runtime/src/agent/ (exported via /v2 subpath)
- Move v2 packages (core, angular, demo-agents, etc.) to packages/*
- Replace all @copilotkitnext/* imports with @copilotkit/* equivalents
- Keep @copilotkitnext/angular as the sole exception (angular remains on next)
- Update CI workflows, renovate config, release scripts for flat structure
- No public API surface changes — all exports fields are preserved
Co-authored-by: Alem Tuzlak <t.zlak@hotmail.com>
Signed-off-by: Tyler Slaton <tyler@copilotkit.ai>
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