[BUG] SSH remote connection broken after Desktop app update to 1.8555.0 (worked in 1.8089.0)

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?

After updating the Claude Code Desktop app to 1.8555.0 (released May 21, 2026), my previously-working SSH remote session no longer connects. The same configuration worked correctly on 1.8089.0 (May 19, 2026). No changes were made to the remote server, SSH config, or network between the two versions.
The 1.8555.0 release notes explicitly mention changes to remote-session reconnection behavior:

Fixed: Remote sessions reconnect on their own after sleep or network changes

This suggests the regression was introduced by changes to the remote-session/reconnection path in this release.

What Should Happen?

Claude Code should be able to connect to the remote machine via SSH.

Error Messages/Logs

Steps to Reproduce

Have a working SSH remote session configured on Desktop app 1.8089.0
Update Desktop app to 1.8555.0
Attempt to open the previously-working SSH remote session
Connection fails

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

1.8089.0

Claude Code Version

1.8555.0

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_