Claude Code v2.1.39 Release Notes
Claude Code v2.1.39 brings significant terminal improvements and critical bug fixes for better performance and stability.
February 11, 2026 • 10 min read • By ClaudeWorld
The Claude Code development team has released version 2.1.39, focusing on terminal performance enhancements and resolving several critical issues that have been affecting user experience. This update delivers substantial improvements to terminal rendering and fixes important bugs related to error handling and process management.
What’s New
Enhanced Terminal Performance
This release introduces significant improvements to terminal rendering performance, making your coding sessions more responsive and smooth. Users should notice faster screen updates and reduced lag during intensive terminal operations.
Critical Bug Fixes
- Fatal Error Display: Fixed a serious issue where fatal errors were being silently swallowed instead of being properly displayed to users, improving debugging capabilities
- Process Management: Resolved hanging processes that would persist after session close, preventing resource leaks and system slowdowns
- Terminal Rendering: Fixed character loss occurring at terminal screen boundaries, ensuring complete command output visibility
- Transcript View: Corrected blank line issues in verbose transcript view for better readability
How to Update
To update to Claude Code v2.1.39:
- Check your current version using the help menu
- Download the latest version from the official release page
- Follow the installation instructions for your operating system
- Restart Claude Code to ensure all changes take effect