[BUG] Shift+click required for text selection — regression from ~2 weeks ago

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Description:
Text selection in Claude Code now requires holding Shift while clicking and dragging. This was not required approximately two weeks ago — selection worked without Shift in the same terminal setup.

Steps to reproduce:

1. Open Claude Code in GNOME Terminal on Ubuntu 22.04
2. Try to click and drag to select text without holding Shift
3. Observe: selection does not work; the app captures the mouse event
4. Workaround: hold Shift while selecting — this passes the event to the terminal

Expected behavior: Click and drag selects text (as it did ~2 weeks ago)

Current Claude Code version: 2.1.165

OS: Ubuntu 22.04.5 LTS (Jammy)

Terminal emulator: GNOME Terminal 3.44.0

TERM: xterm-256color

COLORTERM: truecolor

What Should Happen?

Description:
Text selection in Claude Code now requires holding Shift while clicking and dragging. This was not required approximately two weeks ago — selection worked without Shift in the same terminal setup.

Steps to reproduce:

1. Open Claude Code in GNOME Terminal on Ubuntu 22.04
2. Try to click and drag to select text without holding Shift
3. Observe: selection does not work; the app captures the mouse event
4. Workaround: hold Shift while selecting — this passes the event to the terminal

Expected behavior: Click and drag selects text (as it did ~2 weeks ago)

Current Claude Code version: 2.1.165

OS: Ubuntu 22.04.5 LTS (Jammy)

Terminal emulator: GNOME Terminal 3.44.0

TERM: xterm-256color

COLORTERM: truecolor

Error Messages/Logs

Steps to Reproduce

Text selection in Claude Code now requires holding Shift while clicking and dragging. This was not required approximately two weeks ago — selection worked without Shift in the same terminal setup.

Steps to reproduce:

1. Open Claude Code in GNOME Terminal on Ubuntu 22.04
2. Try to click and drag to select text without holding Shift
3. Observe: selection does not work; the app captures the mouse event
4. Workaround: hold Shift while selecting — this passes the event to the terminal

Expected behavior: Click and drag selects text (as it did ~2 weeks ago)

Current Claude Code version: 2.1.165

OS: Ubuntu 22.04.5 LTS (Jammy)

Terminal emulator: GNOME Terminal 3.44.0

TERM: xterm-256color

COLORTERM: truecolor

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.165

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_