# common.assertSupportedTmux

- **Module:** common
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-ts/blob/ad09eaef7ffff40f510989ee0695852c44a31576/packages/libtmux/src/common.ts#L264
- **Page:** https://libtmux.org/en/ts/latest/reference/common-assertsupportedtmux/

```
function assertSupportedTmux(version: string): void
```

Refuse a version report below {@link MINIMUM_TMUX}.

Reports rank as tmux ranks them: `3.3` is below `3.3a`, and a development
build ranks below the release it names, so `next-3.4` passes and `3.3a-rc`
does not. A report libtmux cannot place, such as `master`, is refused.

## Examples

```ts
assertSupportedTmux("3.3a");
assertSupportedTmux("next-3.9");
```

## Parameters

- `version` (`string`)

## Raises

- [`VersionTooLowError`](/en/ts/latest/reference/errors-versiontoolowerror/): when the report is below the minimum or unrecognized.