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Roo Code 3.13.0 Release Notes (2025-04-17)

This release brings significant UI improvements across multiple views, adds the new append_to_file tool, introduces Gemini 2.5 Flash Preview support, and includes important bug fixes.

Gemini 2.5 Flash Preview​

  • Add Gemini 2.5 Flash Preview to Gemini and Vertex providers (thanks nbihan-mediware!)

UI Improvements​

  • UI improvements to task header, chat view, history preview, and welcome view (thanks sachasayan!)

New Tool: append_to_file​

  • Added new append_to_file tool for appending content to files (thanks samhvw8!)
    • Efficiently add content to the end of existing files or create new files
    • Ideal for logs, data records, and incremental file building
    • Includes automatic directory creation and interactive approval via diff view
    • Complements existing file manipulation tools with specialized append functionality

Bug Fixes​

  • Fix image support in Bedrock (thanks Smartsheet-JB-Brown!)
  • Make diff edits more resilient to models passing in incorrect parameters
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