---
description: The pipeline field in Wrangler pipeline binding configuration has been renamed to stream. The old field is deprecated but still accepted.
title: Pipeline binding configuration field renamed to stream
image: https://developers.cloudflare.com/changelog/post/2026-05-27-pipeline-binding-stream-field/og.png?v=24304b663b6a615d
---

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June 4, 2026

## Pipeline binding configuration field renamed to stream

[Basin Pipelines](https://developers.cloudflare.com/basin-pipelines/) [Basin](https://developers.cloudflare.com/basin/) [Workers](https://developers.cloudflare.com/workers/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-05-27-pipeline-binding-stream-field/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

The `pipeline` field inside the `pipelines` binding configuration in your [Wrangler configuration file](https://developers.cloudflare.com/workers/wrangler/configuration/) has been renamed to `stream`. The old field is deprecated but still accepted.

Update your configuration to use `stream` to avoid the deprecation warning.

**Before (deprecated):**

```jsonc
{
  "$schema": "./node_modules/wrangler/config-schema.json",
  "pipelines": [
    {
      "binding": "MY_PIPELINE",
      "pipeline": "<STREAM_ID>"
    }
  ]
}
```

```toml
[[pipelines]]
binding = "MY_PIPELINE"
pipeline = "<STREAM_ID>"
```

**After:**

```jsonc
{
  "$schema": "./node_modules/wrangler/config-schema.json",
  "pipelines": [
    {
      "binding": "MY_PIPELINE",
      "stream": "<STREAM_ID>"
    }
  ]
}
```

```toml
[[pipelines]]
binding = "MY_PIPELINE"
stream = "<STREAM_ID>"
```

No other changes are required. The binding name, TypeScript types, and runtime API (`env.MY_PIPELINE.send(...)`) remain the same.

For more information on configuring pipeline bindings, refer to [Writing to streams](https://developers.cloudflare.com/basin-pipelines/streams/writing-to-streams/#configure-pipeline-binding).

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```