# tmux.Version.Major

- **Module:** tmux.Version
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/5f808882015a975a65acc7f9da5b3ff0d5cbdc91/tmux/version.go#L142
- **Page:** https://libtmux.org/reference/go/tmux-version-major/

```
tmux.Version.Major() -> int
```

Major returns the capability-level major component. Development tokens use the latest tested feature core. Unprobed OpenBSD base-system tokens return zero.