Steps to Reproduce

• Start a new session
• Make changes to ~\.tmux.conf and save the file
• Press Prefix : to bring up the command box
• Type in source-file ~\.tmux.conf

Expected Behavior

The configuration file is re-loaded, and the changes are applied immediately.

Actual Behavior

Nothing happens. The only way to make psmux re-load the config file and apply the changes is to issue the kill-server command.

Workaround

This works:

• Detach from session
• Run psmux source-file ~\.tmux.conf
• Re-attach

Changes are reflected.

It would be nice to be able to do this from within a psmux session. On Mac/Linux I have Prefix R bound to source-file ~/.tmux.conf and can tweak my config and see the results immediately.

Environment

• Win 11 25H2
• Windows Terminal Version: 1.23.20211.0
• PowerShell 7.6.0
• OhMyPosh 29.9.0
• psmux 3.3 (installed via scoop)