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Roo Code 3.15 Release Notes (2025-05-05)

This release introduces prompt caching for Google Vertex, improved terminal command handling, UI/UX enhancements, provider updates, performance improvements, and several other improvements and bug fixes across versions 3.15.0 to 3.15.5.

Prompt Caching for Google Vertex​

  • Added prompt caching capabilities to the Google Vertex provider for potentially faster and more cost-effective responses (thanks ashktn).

Improved Terminal Command Handling​

  • Implemented a fallback mechanism for executing terminal commands if VSCode terminal shell integration fails.

  • Added the ability to stop commands directly from the chat UI.

Boomerang Orchestrator Mode​

  • Enhanced Orchestrator (Boomerang) mode strictly orchestrates tasks.
  • No longer reads, writes, executes commands, or utilizes MCP servers; offloads these tasks to other modes.
  • Provides more predictable and secure task automation.

Settings Import/Export​

  • Roo Code settings can now be imported directly from the welcome screen (thanks julionav).
  • Fixed importing & exporting of custom modes (thanks julionav).

QOL Improvements​

  • Play notification sound (when enabled) only when action is needed from the user (thanks olearycrew!).

  • Improved the UI/UX of code snippets in the chat (thanks KJ7LNW).

  • Adjusted chat view padding to accommodate small width layouts (thanks zhangtony239).

  • Fixed chat input height instability during window resizing (thanks zhangtony239!).

  • Corrected chat layout padding issues during window resizing (thanks zhangtony239!).

  • Simplified and streamlined Roo Code's quick actions.

  • Improved the auto-approve toggle buttons for some high-contrast VSCode themes.

  • Offloaded expensive count token operations to a web worker for better performance (thanks samhvw8).

  • Improved support for multi-root workspaces (thanks snoyiatk).

  • Improved the performance of mode switching (thanks dlab-anton).

  • Improved Mermaid diagram rendering with clearer error messages and a copy code button.

    Mermaid diagram error message with copy code button

  • Made the integrated terminal significantly faster and smoother.

  • Improved the reliability of stopping terminal commands.

  • Refined inline code styling in chat for better readability (thanks dicharkan!).

  • Clarified tool group display in the Modes view when no tool groups are present.

  • Rendering performance improvements for code blocks in chat (thanks KJ7LNW!).

Bug Fixes​

  • Fix a nasty bug that would cause Roo Code to hang, particularly in orchestrator mode.
  • Terminal: Fix empty command bug.
  • Terminal: More robust process killing.
  • Made retries respect the global auto-approve checkbox.
  • Fixed a selection mode bug in the history view (thanks jr!).
  • Fixed file mentions for filenames containing spaces.
  • Fixed importing & exporting of custom modes (thanks julionav).

Provider Updates​

  • Added prompt caching for Google Vertex (thanks ashktn).
  • Added a reasoning effort setting for OpenAI Compatible providers (thanks mr-ryan-james).
  • Added support for custom API base URLs for OpenAI/OpenAI Compatible providers (thanks gongzhongqiang!).
  • Added support for custom headers for OpenAI Compatible providers.
  • Update @google/genai to 0.12 (includes some streaming completion bug fixes).
  • Improve Gemini caching efficiency.
  • Optimize Gemini prompt caching for OpenRouter.

Misc Improvements​

  • Chat view performance improvements.
  • Removed unused types (thanks wkordalski).
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