npm · npm:fp-ts

fp-ts active

Functional programming in TypeScript

The latest stable version of fp-ts is 2.16.11, published on 2025-08-18. Verified by Vigia on 2026-11-12.

Latest stable version	2.16.11
Published	2025-08-18 14:00:30 UTC
Install	`npm install fp-ts@latest`
Requires (engines)	none declared
Peer dependencies	—
Dist-tags	`rc: 2.13.0-rc.6` `next: 3.0.0-alpha.26` `latest: 2.16.11` `old-version-1: 1.19.5`
License	MIT
Advisories on latest version	none known
Last verified	2026-11-12 15:50:46 UTC
Sources	api.deps.dev, registry.npmjs.org, registry.npmjs.org

Maintenance

Activity	slowing down
Last stable release	2025-08-18 14:00:30 UTC · 451 days ago
Stable releases in the last 12 months	0
Published versions	233

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

Version	Published
`2.16.11`	2025-08-18 14:00:30 UTC
`2.16.10`	2025-04-18 09:28:00 UTC
`2.16.9`	2024-07-25 16:05:25 UTC
`2.16.8`	2024-07-07 09:13:56 UTC
`2.16.7`	2024-06-29 16:02:07 UTC
`2.16.6`	2024-05-19 14:47:25 UTC
`2.16.5`	2024-03-25 17:25:32 UTC
`2.16.4`	2024-03-18 14:33:14 UTC
`2.16.3`	2024-03-11 17:29:31 UTC
`2.16.2`	2024-01-03 16:25:34 UTC
`2.16.1`	2023-07-27 14:15:52 UTC
`2.16.0`	2023-05-25 15:48:11 UTC
`2.15.0`	2023-05-08 12:38:22 UTC
`2.14.0`	2023-04-20 17:53:24 UTC
`2.13.2`	2023-04-19 17:38:52 UTC
`2.13.1`	2022-10-17 18:57:31 UTC
`2.13.0`	2022-10-17 12:14:15 UTC
`2.12.3`	2022-08-31 06:04:30 UTC
`2.12.2`	2022-07-25 09:06:40 UTC
`2.12.1`	2022-04-28 07:34:36 UTC

Showing the 20 most recent of 176 versions. JSON

Give your AI agent these facts

Vigia is a free MCP server: your coding agent checks versions, breaking changes and vulnerabilities before it writes code. No signup, no API key.

claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp

Add to Cursor Add to VS Code ★ Star on GitHub

Any other MCP client

{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }

Agent skill (SKILL.md): tells the agent when to use Vigia · GitHub Action for pull requests

Frequently asked questions

What is the latest version of fp-ts?

The latest stable version of fp-ts is 2.16.11, published on 2025-08-18. Verified by Vigia on 2026-11-12.

How do I install the latest version of fp-ts?

Run npm install fp-ts@latest. The latest stable version is 2.16.11 (verified 2026-11-12).

Is fp-ts deprecated?

No. fp-ts is not marked as deprecated in the registry.

Which Node.js version does fp-ts require?

fp-ts 2.16.11 does not declare a Node.js version requirement.

Does fp-ts 2.16.11 have known vulnerabilities?

No known advisories affect fp-ts 2.16.11 according to the data Vigia checks.

Is fp-ts still maintained?

fp-ts published 0 stable releases in the last 12 months; the most recent was 451 days ago. Activity: slowing down.

Observed changes

No changes observed yet since Vigia started tracking this package.

Related packages

Badges for your README

Show the latest version, maintenance status and deprecation status of this package. Copy the Markdown:

[![version](https://vigia.coredls.cloud/badge/npm/fp-ts/version.svg)](https://vigia.coredls.cloud/npm/fp-ts)
[![maintained](https://vigia.coredls.cloud/badge/npm/fp-ts/maintained.svg)](https://vigia.coredls.cloud/npm/fp-ts)
[![status](https://vigia.coredls.cloud/badge/npm/fp-ts/status.svg)](https://vigia.coredls.cloud/npm/fp-ts)

For agents

GET https://vigia.coredls.cloud/v1/packages/npm/fp-ts
GET https://vigia.coredls.cloud/v1/packages/npm/fp-ts/versions/{version}