Sep 11, 2026: CoCo Desktop v1.21.4¶

CoCo Desktop v1.21.4 is a polish and reliability release on top of v1.21.3:

• Windows installer matches macOS: The Windows installer no longer shows a License Agreement click-through page.
• Add highlighted conversation text to chat: Select text in a conversation and use the Add to Chat pill or ⌘L / Ctrl+L to attach it to your next message.
• Cancel a pending steering message: Remove an armed steering message without stopping the active turn.
• dbt runs stay focused on Output: After a Project Action Bar Run or Build, you remain on the Current Project Output panel.

This release also fixes a bug where a fresh Gemini session could fail with a 400 error because the model’s thought signature was dropped between turns.

For more information, see Cortex Code Desktop v1.21.4 release notes.