# Streamdown 2.5 is now available

DevFeed: [Streamdown 2.5 is now available](<https://devfeed.tech/articles/streamdown-2-5-is-now-available-1103.md>)

Original publisher: [Read original article](<https://vercel.com/changelog/streamdown-2-5>)

Author: Ben Sabic

Published: 2026-03-16T13:00:00Z

Content type: release

Language: en

Sources: [Vercel News](<https://devfeed.tech/sources/vercel-news.md>)

Topics: [React](<https://devfeed.tech/topics/react.md>), [Streaming](<https://devfeed.tech/topics/streaming.md>), [Markdown](<https://devfeed.tech/topics/markdown.md>), [CSV](<https://devfeed.tech/topics/csv.md>), [Tailwind CSS](<https://devfeed.tech/topics/tailwind.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>)

Tags: [bug-fixes](<https://devfeed.tech/tags/bug-fixes.md>), [compatibility](<https://devfeed.tech/tags/compatibility.md>), [css](<https://devfeed.tech/tags/css.md>), [markdown](<https://devfeed.tech/tags/markdown.md>), [react](<https://devfeed.tech/tags/react.md>), [streaming](<https://devfeed.tech/tags/streaming.md>)

## AI overview

Streamdown 2.5 is a React component library release for rendering streaming Markdown in AI-powered applications. It adds inline KaTeX support, staggered streaming animations, improved code-block rendering, CSV encoding fixes for Excel on Windows, and better Tailwind CSS v3 compatibility.

## Source excerpt

Streamdown is a React component library that makes rendering streaming markdown content easy and beautiful. Built for AI-powered applications, it handles the unique challenges that arise when markdown is tokenized and streamed in real time. v2.5 adds inline KaTeX support, staggered streaming animations, and a round of fixes for code blocks, CSV exports, and better Tailwind v3 compatibility. Streaming parser improvements The new inlineKatex option auto-completes $formula to $formula$ during streaming, avoiding ambiguity with currency symbols, and the option defaults to false. Block KaTeX completion is also fixed when streaming produces a partial closing $. Separately, single ~ between word characters (e.g. 20~25°C) is now escaped to prevent false strikethrough rendering, controlled via a new singleTilde option that is enabled by default. Staggered streaming animations Streaming word and character animations now cascade sequentially rather than animating all at once. The timing is configurable via a new stagger option (default 40ms). Set stagger: 0 to restore the previous behavior. Code blocks Custom renderers now receive the raw metastring from the code fence via a new optional meta prop, and the lineNumbers prop lets you disable line numbers. Long lines now scroll horizontally instead of being clipped, completed blocks no longer re-render when new streaming content arrives, and unknown or truncated language identifiers fall back to plain text highlighting instead of throwing an error. Bug fixes save() now prepends a UTF-8 BOM for text/csv content, so Excel on Windows correctly detects encoding. Tailwind v4-only *:last: / *:first: syntax is replaced with arbitrary variant equivalents, fixing caret rendering in Tailwind CSS v3. Read the documentation to get started. Read more