[BUG] Shift+Enter in Claude for Windows No Longer Works for NewLine

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?

In previous versions of Claude Code for Windows (probably 2 or 3 versions ago now) I was able to hit Shift+Enter, and get to a new line to continue adding info. Now when i hit it, it just sends the message right away. There's no longer a way to get to new line.

I've tried Shift+Enter, CTRL+Enter, and Alt+Enter and none of them work.

What Should Happen?

Shift+Enter should've gone to the next line instead of sending my reply.

Error Messages/Logs

Steps to Reproduce

1. Open a new chat.
2. Write some text.
3. Click Shift+Enter

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.1.2685 (f39a62)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

using Claude for Windows.