# libtmux::Server::tmux_version

- **Module:** libtmux::Server
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/85e8bd603a322dc32bb8b9aeb1a72bcf36945f1d/include/libtmux/server.hpp#L143
- **Page:** https://libtmux.org/reference/cxx/libtmux-server-tmux_version/

```
libtmux::Server::tmux_version() -> expected< Version, CommandFailure >
```

Ask the selected subprocess executable with `tmux -V` without touching a server.

The call uses this Server's execution policy.