Mistral Vibe: Complete CLI UI Redesign with Incremental Session Loading

Mistral Vibe Gets a Visual Overhaul in Version 2.1.0

Released on February 11, 2026, Mistral Vibe 2.1.0 brings a complete UI redesign to the terminal-based coding agent, addressing one of the most visible aspects of the developer experience.

The New Interface

The redesign introduces a new look and layout for the CLI, replacing the legacy terminal theme module and standalone onboarding theme selection screen. The visual refresh is built on top of the Textual framework, which Mistral Vibe uses for its terminal UI rendering.

Performance Optimizations

Beyond aesthetics, version 2.1.0 includes substantial performance work under the hood:

• ChatScroll Component: A new component that reduces style recalculations during message rendering, improving responsiveness in active sessions.
• VerticalGroup for Messages: Messages are now organized in vertical groups for more efficient layout computation.
• Stream Layout for Streaming Blocks: Streaming content blocks use a dedicated layout strategy optimized for real-time token rendering.
• Cached DOM Queries: Repeated DOM queries are now cached, reducing overhead in complex conversation views.

Incremental Session Loading

One of the most practical additions in 2.1.0 is incremental loading for long sessions. The system now uses a windowing approach, loading 20 messages at a time with a "Load more" button to fetch older messages. When resuming a session, the view automatically scrolls to the bottom, placing the developer right where the conversation left off.

This addresses a real pain point for developers working on extended coding sessions that generate hundreds of messages.

Other Changes

The release also includes ACP support for thinking via agent-client-protocol 0.8.0, FIFO path support for environment files, clipboard behavior improvements, and fixes for inaccurate token counts in the UI.