---
title: "@smithy/types 4.19.0"
description: "Latest published version of @smithy/types is 4.19.0, licensed Apache-2.0. Current as of our last registry check."
url: https://inlinr.com/packages/@smithy/types
lang: en
---

[Packages](https://inlinr.com/packages)

# @smithy/types

4.19.0 · 22 Sep 2026 Apache-2.0 191M / week [Repository](https://github.com/smithy-lang/smithy-typescript) [Homepage](https://github.com/smithy-lang/smithy-typescript/tree/main/packages/types) [npm](https://www.npmjs.com/package/@smithy/types) [Atom feed](https://inlinr.com/packages/feed/@smithy/types)

Your version 

## Where each line stands

[Plan an upgrade](https://inlinr.com/packages/@smithy/types/upgrade)

LineNewestSecurity

- 4.x 4.19.0 No known advisory Latest line
- 3.x 3.7.2 No known advisory [To 4.19.0](https://inlinr.com/packages/@smithy/types/upgrade/3.7.2-4.19.0)
- 2.x 2.12.0 No known advisory [To 4.19.0](https://inlinr.com/packages/@smithy/types/upgrade/2.12.0-4.19.0)
- 1.x 1.2.0 No known advisory [To 4.19.0](https://inlinr.com/packages/@smithy/types/upgrade/1.2.0-4.19.0)

## Latest releases

[All 74 releases](https://inlinr.com/packages/@smithy/types/releases)

1. ### [4.19.0](https://inlinr.com/packages/@smithy/types/releases/4.19.0 "Open this release") [](https://github.com/smithy-lang/smithy-typescript/releases/tag/%40smithy/types%404.19.0 "Read this release where it was published")  
22 Sep 2026

  - Add per-request MetricsRecorder support through `client.send(command, { metricsRecorder })`
2. ### [4.18.0](https://inlinr.com/packages/@smithy/types/releases/4.18.0 "Open this release") [](https://github.com/smithy-lang/smithy-typescript/releases/tag/%40smithy/types%404.18.0 "Read this release where it was published")  
3 Sep 2026

  - Allow passing custom fetch function to fetch-http-handler
3. ### [4.17.2](https://inlinr.com/packages/@smithy/types/releases/4.17.2 "Open this release") [](https://github.com/smithy-lang/smithy-typescript/releases/tag/%40smithy/types%404.17.2 "Read this release where it was published")  
15 Aug 2026

  - Restore npm provenance attestations. No functional changes.

Dependency tracking · free for 3 projects

## Know when your own dependencies move

@smithy/types published 21 releases in the last 12 months. inlinr folds the routine ones into a line and keeps the few that need you.

- Advisories reach you  
An email when a critical or high advisory affects a project, before the next install.
- Upgrades checked first  
Peer ranges, Node, ESM-only and types changes read before you bump.
- Only what matters  
Majors and breaking notes stay; patches and sibling bumps fold into one line.

[How dependency tracking works](https://inlinr.com/dependencies)

## Security

No known security advisory.

## Health

[Details](https://inlinr.com/packages/@smithy/types/security#signals)

- **Provenance**:
- **Publisher**:
- **Maintainers**:
- **Scorecard**:
- **Size**:

## Weekly downloads

## Same family

- [@smithy/core 139.1M/wk](https://inlinr.com/packages/@smithy/core)
- [@smithy/util-utf8 135.2M/wk](https://inlinr.com/packages/@smithy/util-utf8)
- [@smithy/signature-v4 127.9M/wk](https://inlinr.com/packages/@smithy/signature-v4)
- [@smithy/protocol-http 69.6M/wk](https://inlinr.com/packages/@smithy/protocol-http)
- [@smithy/util-middleware 60.6M/wk](https://inlinr.com/packages/@smithy/util-middleware)
- [@smithy/smithy-client 52.6M/wk](https://inlinr.com/packages/@smithy/smithy-client)
- [@smithy/middleware-endpoint 52.6M/wk](https://inlinr.com/packages/@smithy/middleware-endpoint)
- [@smithy/middleware-serde 52.4M/wk](https://inlinr.com/packages/@smithy/middleware-serde)

Registry facts last checked 4 Nov 2026\. Releases and advisories last read 4 Nov 2026.