---
title: "fastify-plugin 6.0.1"
description: "Latest published version of fastify-plugin is 6.0.1, licensed MIT. Current as of our last registry check."
url: https://inlinr.com/packages/fastify-plugin
lang: en
---

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

# fastify-plugin

6.0.1 · 10 Oct 2026 MIT 26.9M / week [Repository](https://github.com/fastify/fastify-plugin) [Homepage](https://github.com/fastify/fastify-plugin#readme) [npm](https://www.npmjs.com/package/fastify-plugin) [Atom feed](https://inlinr.com/packages/feed/fastify-plugin)

Your version 

## Where each line stands

[Plan an upgrade](https://inlinr.com/packages/fastify-plugin/upgrade)

LineNewestSecurity

- 6.x 6.0.1 No known advisory Latest line
- 5.x 5.1.0 No known advisory [To 6.0.1](https://inlinr.com/packages/fastify-plugin/upgrade/5.1.0-6.0.1)
- 4.x 4.5.1 No known advisory [To 6.0.1](https://inlinr.com/packages/fastify-plugin/upgrade/4.5.1-6.0.1)
- 3.x 3.0.1 No known advisory [To 6.0.1](https://inlinr.com/packages/fastify-plugin/upgrade/3.0.1-6.0.1)
- 2.x 2.3.4 No known advisory [To 6.0.1](https://inlinr.com/packages/fastify-plugin/upgrade/2.3.4-6.0.1)
- 1.x 1.6.1 No known advisory [To 6.0.1](https://inlinr.com/packages/fastify-plugin/upgrade/1.6.1-6.0.1)

## Latest releases

[All 45 releases](https://inlinr.com/packages/fastify-plugin/releases)

1. 6.x · latest line
2. ### [6.0.1](https://inlinr.com/packages/fastify-plugin/releases/6.0.1 "Open this release") [](https://github.com/fastify/fastify-plugin/releases/tag/v6.0.1 "Read this release where it was published")  
10 Oct 2026

  - **index:** Throw intended `TypeError` when the plugin is nullish
  - **index:** Hoist `Symbol.for` lookups to module-level
  - **lib/tocamelcase:** Hoist regex and replacer
3. ### [6.0.0](https://inlinr.com/packages/fastify-plugin/releases/6.0.0 "Open this release")  
9 Jun 2026
4. 5.x · maintenance
5. ### [5.1.0](https://inlinr.com/packages/fastify-plugin/releases/5.1.0 "Open this release")  
28 Sep 2025

Notes older than 90 days are read on the [Releases tab](https://inlinr.com/packages/fastify-plugin/releases).

Dependency tracking · free for 3 projects

## Know when your own dependencies move

fastify-plugin shipped a new major in the last 12 months, among 2 releases. inlinr shows which of your projects are behind, and what the upgrade breaks.

- 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/fastify-plugin/security#signals)

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

## Weekly downloads

Reading releases, release notes and advisories…

Registry facts last checked 2 Nov 2026\. Releases and advisories last read 2 Nov 2026.