# workers-types v5 keeps only the latest runtime types!

Hey there, it's Shiichan! Today I've got a small but pleasant tidy-up from the world of [Workers](https://developers.cloudflare.com/workers/) development.

## What was announced?

Cloudflare's Changelog announced version 5 of [@cloudflare/workers-types](https://www.npmjs.com/package/@cloudflare/workers-types). This package holds the runtime type definitions you use when writing Workers in TypeScript, and v5 trims it down to ship only the latest runtime types.

## The story so far

Older releases of workers-types carried a pile of dated entrypoints like `@cloudflare/workers-types/2022-11-30` and `@cloudflare/workers-types/2023-03-01`. It was easy to get lost deciding which one to import.

## What changes

v5 removes those dated entrypoints and exposes just two:

- `@cloudflare/workers-types` reflects the latest compatibility date, using the latest stable compatibility flags.
- `@cloudflare/workers-types/experimental` reflects APIs behind experimental compatibility flags.

Fewer choices means less time wondering which types to pull in.

## Dive Deep

Cloudflare still recommends generating types with [wrangler types](https://developers.cloudflare.com/workers/wrangler/commands/general/#types) rather than installing the package directly. But if you want the package, grab it with your favorite package manager:

```
npm i -D @cloudflare/workers-types@latest
```

To replace the removed dated entrypoints, use the runtime type generation in [Wrangler v4](https://developers.cloudflare.com/workers/wrangler/). Running `wrangler types` builds types locked to your Worker's own compatibility date, which is more accurate. For the full picture, check out [TypeScript language support](https://developers.cloudflare.com/workers/languages/typescript/).

## Wrap-up

- [@cloudflare/workers-types](https://www.npmjs.com/package/@cloudflare/workers-types) is now v5, shipping only the latest runtime types.
- Only two entrypoints remain: `@cloudflare/workers-types` and `.../experimental`. The dated ones are gone.
- Want date-locked types? Generate them with [wrangler types](https://developers.cloudflare.com/workers/wrangler/commands/general/#types) against your Worker's compatibility date.

If you write Workers in TypeScript, especially if you leaned on the old dated types, this cleanup is for you!