# @assistant-ui/react-streamdown

## 0.3.5

### Patch Changes

- [#4517](https://github.com/assistant-ui/assistant-ui/pull/4517) [`cefcf27`](https://github.com/assistant-ui/assistant-ui/commit/cefcf27b4b53ceafef18e469644d51797c11c8ff) - chore: update dependencies ([@okisdev](https://github.com/okisdev))

## 0.3.4

### Patch Changes

- [#4408](https://github.com/assistant-ui/assistant-ui/pull/4408) [`b6016d1`](https://github.com/assistant-ui/assistant-ui/commit/b6016d1d3dd98ee9c3d3e7ee6ff1fa818a225abb) - feat: export math-delimiter preprocess helpers for the markdown text primitives ([@okisdev](https://github.com/okisdev))

  adds `normalizeMathDelimiters`, `rewriteLatexBracketDelimiters`, `rewriteCustomMathTags`, and `escapeCurrencyDollars` so you can pass them to the `preprocess` prop instead of copy-pasting a regex blob. they rewrite the `\(...\)` / `\[...\]` brackets and `[/math]` / `[/inline]` tags that models emit to the `$...$` / `$$...$$` form remark-math parses, and escape `$5`-style currency so single-dollar math doesn't eat it.

- [#4418](https://github.com/assistant-ui/assistant-ui/pull/4418) [`2a03d96`](https://github.com/assistant-ui/assistant-ui/commit/2a03d9680e63011c0091750036137dc713d50dd9) - perf: repair only the trailing block of streaming markdown instead of the whole message ([@okisdev](https://github.com/okisdev))

  `StreamdownTextPrimitive` let Streamdown run `remend` (incomplete-markdown repair) over the entire accumulated message on every streaming flush, which grows with the message. It now repairs only the last top-level block (the only place a dangling opener can be, since inline constructs cannot cross a blank line and blocks are split after repair), which is render-equivalent but bounds the heavier `remend` repair to the tail instead of running it over the whole message each flush. `tailBoundedRemend` and `findRemendWindowStart` are exported so you can apply the same windowing yourself. Custom `remend` options are honored, repair falls back to the full message when a custom `parseMarkdownIntoBlocksFn` is supplied, and `parseIncompleteMarkdown={false}` still disables repair entirely.

## 0.3.3

### Patch Changes

- [#4348](https://github.com/assistant-ui/assistant-ui/pull/4348) [`5ca6558`](https://github.com/assistant-ui/assistant-ui/commit/5ca655858351dc7ad852ef4bc8292aa74d90e174) - feat: opt-in `defer` prop on the markdown text primitives ([@okisdev](https://github.com/okisdev))

  `StreamdownTextPrimitive` and `MarkdownTextPrimitive` accept a `defer` flag that routes the streamed text through `useDeferredValue`, so re-parsing the growing message runs at a lower priority and typing/scrolling stay responsive while a long message streams in. intermediate streaming states may be skipped under load; the final text always renders. default off; the shadcn kit's markdown-text turns it on.

- [#4357](https://github.com/assistant-ui/assistant-ui/pull/4357) [`fb1a7d3`](https://github.com/assistant-ui/assistant-ui/commit/fb1a7d373cebf29803a83b275fb4795449aef4bd) - feat: `smooth` prop on `StreamdownTextPrimitive` ([@okisdev](https://github.com/okisdev))

  opt-in typewriter reveal via the now-public `useSmooth`, accepting `boolean | SmoothOptions`. the pipeline runs preprocess, then smooth, then the existing `defer` deferral, and `data-status`/`isAnimating` derive from the smooth status so the caret keeps blinking and the copy/download controls stay disabled until the reveal catches up. default off; streamdown's block memoization bounds the per-frame cost to linear string scans plus the tail block parse. the `@assistant-ui/react` peer floor moves to the release that ships `SmoothOptions`.

## 0.3.2

### Patch Changes

- [#4306](https://github.com/assistant-ui/assistant-ui/pull/4306) [`15878d8`](https://github.com/assistant-ui/assistant-ui/commit/15878d8114edbbb82c2a467cf811478e5f4e08bc) - chore: update dependencies ([@Yonom](https://github.com/Yonom))

## 0.3.1

### Patch Changes

- [#4085](https://github.com/assistant-ui/assistant-ui/pull/4085) [`01244a5`](https://github.com/assistant-ui/assistant-ui/commit/01244a56026ee92bd4e49cb985136f9eb6d45154) - chore: update dependencies ([@Yonom](https://github.com/Yonom))

- Updated dependencies [[`b02b701`](https://github.com/assistant-ui/assistant-ui/commit/b02b7012cff158b4e73b82503b9ea90638b7398d), [`0a0c306`](https://github.com/assistant-ui/assistant-ui/commit/0a0c306286598ea885b046a1dfb85016f720051c), [`01244a5`](https://github.com/assistant-ui/assistant-ui/commit/01244a56026ee92bd4e49cb985136f9eb6d45154), [`f2ec01c`](https://github.com/assistant-ui/assistant-ui/commit/f2ec01ce0f01317a8444b779d88f9b6a26d691c5)]:
  - @assistant-ui/react@0.14.8

## 0.3.0

### Patch Changes

- Updated dependencies [[`040d469`](https://github.com/assistant-ui/assistant-ui/commit/040d469acfcf782de6fc188c646dfd8732d27088)]:
  - @assistant-ui/react@0.14.0

## 0.2.0

### Patch Changes

- Updated dependencies [[`801b9a6`](https://github.com/assistant-ui/assistant-ui/commit/801b9a68d9c7c70ab15ca53842d0df6adacb7b86), [`7098bab`](https://github.com/assistant-ui/assistant-ui/commit/7098bab4c67fbd507c3fad746ef130daa01b3fd6), [`aa6e071`](https://github.com/assistant-ui/assistant-ui/commit/aa6e071fdd6ea832c5aff3f6cf817b2e3eb6ceb0), [`b090acb`](https://github.com/assistant-ui/assistant-ui/commit/b090acb98f6bf3579aab4efedddaff83a0b54c94), [`df7eb3e`](https://github.com/assistant-ui/assistant-ui/commit/df7eb3eee6beeac72d3220707cf4660adf932586), [`f4a693e`](https://github.com/assistant-ui/assistant-ui/commit/f4a693ec1898f6ed0b81be47512fe51fd93a2de8), [`d864d07`](https://github.com/assistant-ui/assistant-ui/commit/d864d0709d9db5f8e042e62cf1f40669f087ba68)]:
  - @assistant-ui/react@0.13.0

## 0.1.11

### Patch Changes

- [#3876](https://github.com/assistant-ui/assistant-ui/pull/3876) [`ce865bc`](https://github.com/assistant-ui/assistant-ui/commit/ce865bc46af996d53f89e18068139d4d38546ca6) - chore: update dependencies ([@Yonom](https://github.com/Yonom))

- [#3851](https://github.com/assistant-ui/assistant-ui/pull/3851) [`e19c347`](https://github.com/assistant-ui/assistant-ui/commit/e19c34787097bcf9aedd77f416e28ebd85f948ba) - fix: pass memoized code component to streamdown instead of invoking it as a function, and render CodeHeader when no SyntaxHighlighter is configured for a block ([@okisdev](https://github.com/okisdev))

- Updated dependencies [[`ce865bc`](https://github.com/assistant-ui/assistant-ui/commit/ce865bc46af996d53f89e18068139d4d38546ca6), [`c56f98f`](https://github.com/assistant-ui/assistant-ui/commit/c56f98f5759e710281fc57b343b41af102914f1a), [`9aa5410`](https://github.com/assistant-ui/assistant-ui/commit/9aa54107fc76509830309bb5e2c74984408b97fe), [`a1f84ae`](https://github.com/assistant-ui/assistant-ui/commit/a1f84ae7b7782be19a25369905171de997f327ac), [`b4fde97`](https://github.com/assistant-ui/assistant-ui/commit/b4fde97355b51ed7a35401eeed0e5f5943a51150), [`d53ff4f`](https://github.com/assistant-ui/assistant-ui/commit/d53ff4f3f8b7d7220c1cb274c4fda335598fb063), [`17958c9`](https://github.com/assistant-ui/assistant-ui/commit/17958c9234ccc42394260125df54d897c06a47fd), [`477fa8a`](https://github.com/assistant-ui/assistant-ui/commit/477fa8a4c94d8922f5639dac8888fc55926f36cd)]:
  - @assistant-ui/react@0.12.26

## 0.1.10

### Patch Changes

- c988db8: chore: update dependencies
- Updated dependencies [c988db8]
  - @assistant-ui/react@0.12.25

## 0.1.9

### Patch Changes

- bdce66f: chore: update dependencies
- 209ae81: chore: remove aui-source export condition from package.json exports
- Updated dependencies [6554892]
- Updated dependencies [d726499]
- Updated dependencies [876f75d]
- Updated dependencies [bdce66f]
- Updated dependencies [c362685]
- Updated dependencies [4abb898]
- Updated dependencies [209ae81]
- Updated dependencies [50b3100]
- Updated dependencies [af70d7f]
  - @assistant-ui/react@0.12.22

## 0.1.8

### Patch Changes

- 52403c3: chore: update dependencies
- Updated dependencies [3227e71]
- Updated dependencies [52403c3]
  - @assistant-ui/react@0.12.21

## 0.1.7

### Patch Changes

- 736344c: chore: update dependencies
- 3bd38ed: fix(react-streamdown): preserve data-block in PreOverride for block code detection
- Updated dependencies [28a987a]
- Updated dependencies [736344c]
- Updated dependencies [ff3be2a]
- Updated dependencies [70b19f3]
- Updated dependencies [70b19f3]
- Updated dependencies [c71cb58]
  - @assistant-ui/react@0.12.20

## 0.1.6

### Patch Changes

- 349f3c7: chore: update deps
- Updated dependencies [1ed9867]
- Updated dependencies [427ffaa]
- Updated dependencies [349f3c7]
- Updated dependencies [02614aa]
- Updated dependencies [642bcda]
  - @assistant-ui/react@0.12.18

## 0.1.5

### Patch Changes

- 613c884: fix(react-streamdown): useMessagePartText provide status
- Updated dependencies [5ae74fe]
- Updated dependencies [8ed9d6f]
  - @assistant-ui/react@0.12.16

## 0.1.4

### Patch Changes

- 36ef3a2: chore: update dependencies
- Updated dependencies [36ef3a2]
- Updated dependencies [6692226]
- Updated dependencies [c31c0fa]
- Updated dependencies [1672be8]
- Updated dependencies [28f39fe]
- Updated dependencies [3a1cb66]
- Updated dependencies [14769af]
- Updated dependencies [7c360ce]
- Updated dependencies [a638f05]
- Updated dependencies [8a78cd2]
  - @assistant-ui/react@0.12.12

## 0.1.3

### Patch Changes

- 93910bd: Rename .tsx files to .ts where no JSX syntax is used
- Updated dependencies [5bbe8a9]
- Updated dependencies [5e304ea]
- Updated dependencies [546c053]
- Updated dependencies [a7039e3]
- Updated dependencies [16c10fd]
- Updated dependencies [98c3d54]
- Updated dependencies [b181803]
- Updated dependencies [7836760]
- Updated dependencies [9276547]
- Updated dependencies [b65428e]
- Updated dependencies [af5b085]
- Updated dependencies [61b54e9]
- Updated dependencies [a094c45]
- Updated dependencies [4d7f712]
- Updated dependencies [ecc29ec]
- Updated dependencies [6e97999]
- Updated dependencies [a247fc9]
- Updated dependencies [f414af9]
- Updated dependencies [b48912c]
- Updated dependencies [93910bd]
- Updated dependencies [58a8472]
  - @assistant-ui/react@0.12.11

## 0.1.2

### Patch Changes

- a088518: chore: update dependencies
- Updated dependencies [a088518]
- Updated dependencies [d8122cc]
  - @assistant-ui/react@0.12.9

## 0.1.1

### Patch Changes

- d45b893: chore: update dependencies
- Updated dependencies [d45b893]
- Updated dependencies [fe71bfc]
  - @assistant-ui/react@0.12.5

## 0.1.0

### Minor Changes

- 378a9fd: feat: add @assistant-ui/react-streamdown package

  New package providing Streamdown-based markdown rendering as an alternative to `@assistant-ui/react-markdown`.

  Features:
  - `StreamdownTextPrimitive` component for rendering markdown
  - Built-in support for Shiki syntax highlighting, KaTeX math, and Mermaid diagrams via plugins
  - Compatibility API for migrating from react-markdown (SyntaxHighlighter, CodeHeader, componentsByLanguage)
  - Optimized streaming with block-based rendering and remend

### Patch Changes

- Updated dependencies [07d1c65]
- Updated dependencies [b591d72]
- Updated dependencies [59a338a]
- Updated dependencies [acbaf07]
- Updated dependencies [c665612]
- Updated dependencies [0371d72]
- Updated dependencies [e8b3f34]
  - @assistant-ui/react@0.12.3