# tmux.VersionTooLowError.Subcommand

- **Module:** tmux.VersionTooLowError
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/server_version.go#L84
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-versiontoolowerror-subcommand/

Subcommand names the tmux subcommand whose optional capability was refused. Empty when the command itself is below its floor.