streamdown@1.6.0

vercel/streamdownstreamdown@1.6.0Nov 22, 2025

AI Summary

This minor release (1.6.0) of streamdown introduces Static mode and removes the react-markdown dependency, along with significant improvements to Mermaid diagram handling including export capabilities and custom error components. The release also includes performance optimizations, security fixes, and a new PanZoom component.

Key Highlights

Implemented Static mode for new rendering capability
Added PanZoom component with zoom and pan functionality
Mermaid diagrams can now be exported to SVG, PNG, and MMD formats
Removed react-markdown dependency and urlTransform functions (potential breaking changes)
Performance optimizations and security fixes

Breaking Changes

Removed dependency on react-markdown - may affect users relying on this dependency
Removed urlTransform and defaultUrlTransform functions

New Features

Static mode implementation
PanZoom component for zoom and pan functionality
Export Mermaid diagrams to SVG, PNG, and MMD formats
Custom error components for Mermaid diagrams
Rebuilt syntax highlighting
Fix for incomplete link termination in code blocks
List CSS fixes

Full Release Notes

### Minor Changes

-   6f19ee0: Remove dependency on react-markdown
-   52db013: Implement Static mode

### Patch Changes

-   4e12df6: Performance optimizations
-   606209d: Rebuild syntax highlighting
-   093cd5c: Remove urlTransform and defaultUrlTransform
-   28ab339: Fix incomplete link termination in code blocks
-   b55cbdc: Fix security issues, improve performance
-   872da1a: Allow for custom error components for Mermaid diagrams
-   090c82e: Fix list CSS
-   22cbaeb: Added the ability to export mermaid diagrams to svg and png alongside mmd
-   936af5b: Add PanZoom component and tests for zoom and pan functionality