# isOldBunVersion

**Kind:** Function

**Source:** [`src/helper/streaming/utils.ts`](https://github.com/honojs/hono/blob/main/src/helper/streaming/utils.ts#L1)

**Part of:** [Helper](subsystem-src-helper)

## Signature

```ts
function isOldBunVersion(): boolean
```

**Returns:** `boolean`

## Used by

2 references from 2 files. Each is a place in this repository where the symbol is actually used — go read one rather than trusting an example.

### Imported by (2)

- `SSEMessage` — `src/helper/streaming/sse.ts`:6
- `stream` — `src/helper/streaming/stream.ts`:7