[BUG] Arabic (RTL) text appears reversed after update to v2.1.63

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?

Bug Description:
After the automatic update to v2.1.63 (updated 2026-03-02),
Arabic text input appears reversed/mirrored in the chat input field.
This is affecting my paid subscription experience.

Impact:
I am a paid Claude subscriber and this bug is directly impacting
my ability to use the product I'm paying for. This regression
appeared after an automatic update with no option to opt-out.

Steps to Reproduce:

1. Install/update Claude Code to v2.1.63
2. Type any Arabic (RTL) text in the chat input
3. Text appears reversed and mirrored

Expected Behavior:
Arabic text displays correctly right-to-left

Actual Behavior:
Text appears mirrored/reversed (LTR rendering bug)

Environment:

• VS Code on macOS
• Claude Code v2.1.63
• Language: Arabic (RTL)

Additional Note:
Gemini Code Assist extension on the same VS Code displays
Arabic text correctly, confirming this is a Claude Code specific issue.
This worked correctly before v2.1.63.

Request:
Please prioritize a fix or provide a rollback option urgently.

What Should Happen?

Bug Description:
After the automatic update to v2.1.63 (updated 2026-03-02),
Arabic text input appears reversed/mirrored in the chat input field.
This is affecting my paid subscription experience.

Impact:
I am a paid Claude subscriber and this bug is directly impacting
my ability to use the product I'm paying for. This regression
appeared after an automatic update with no option to opt-out.

Steps to Reproduce:

1. Install/update Claude Code to v2.1.63
2. Type any Arabic (RTL) text in the chat input
3. Text appears reversed and mirrored

Expected Behavior:
Arabic text displays correctly right-to-left

Actual Behavior:
Text appears mirrored/reversed (LTR rendering bug)

Environment:

• VS Code on macOS
• Claude Code v2.1.63
• Language: Arabic (RTL)

Additional Note:
Gemini Code Assist extension on the same VS Code displays
Arabic text correctly, confirming this is a Claude Code specific issue.
This worked correctly before v2.1.63.

Request:
Please prioritize a fix or provide a rollback option urgently.

Error Messages/Logs

Steps to Reproduce

Bug Description:
After the automatic update to v2.1.63 (updated 2026-03-02),
Arabic text input appears reversed/mirrored in the chat input field.
This is affecting my paid subscription experience.

Impact:
I am a paid Claude subscriber and this bug is directly impacting
my ability to use the product I'm paying for. This regression
appeared after an automatic update with no option to opt-out.

Steps to Reproduce:

1. Install/update Claude Code to v2.1.63
2. Type any Arabic (RTL) text in the chat input
3. Text appears reversed and mirrored

Expected Behavior:
Arabic text displays correctly right-to-left

Actual Behavior:
Text appears mirrored/reversed (LTR rendering bug)

Environment:

• VS Code on macOS
• Claude Code v2.1.63
• Language: Arabic (RTL)

Additional Note:
Gemini Code Assist extension on the same VS Code displays
Arabic text correctly, confirming this is a Claude Code specific issue.
This worked correctly before v2.1.63.

Request:
Please prioritize a fix or provide a rollback option urgently.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

٠٠٠٠

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_