npm · npm:union

union active

A hybrid buffered / streaming middleware kernel backwards compatible with connect.

The latest stable version of union is 0.6.0, published on 2024-01-18. Verified by Vigia on 2026-11-12.

Latest stable version	0.6.0
Published	2024-01-18 05:17:44 UTC
Install	`npm install union@latest`
Requires (engines)	`{"node":">= 0.8.0"}`
Peer dependencies	—
Dist-tags	`latest: 0.6.0`
License	—
Advisories on latest version	none known
Last verified	2026-11-12 15:50:16 UTC
Sources	api.deps.dev, registry.npmjs.org, registry.npmjs.org

Maintenance

Activity	dormant
Last stable release	2024-01-18 05:17:44 UTC · 1029 days ago
Stable releases in the last 12 months	0
Published versions	27

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

Version history

Version	Published
`0.6.0`	2024-01-18 05:17:44 UTC
`0.5.0`	2018-12-03 20:20:48 UTC
`0.4.6`	2016-10-22 18:45:58 UTC
`0.4.5`	2016-10-22 18:40:42 UTC
`0.4.4`	2014-12-07 22:59:09 UTC
`0.4.3`	2014-09-15 19:58:41 UTC
`0.4.2`	2014-07-09 08:09:01 UTC
`0.4.1`	2014-07-02 15:50:49 UTC
`0.4.0`	2014-02-28 18:31:03 UTC
`0.3.8`	2013-11-20 11:09:55 UTC
`0.3.7`	2013-03-04 10:37:09 UTC
`0.3.6`	2012-11-29 11:43:46 UTC
`0.3.5`	2012-11-12 17:53:45 UTC
`0.3.4`	2012-07-24 20:15:22 UTC
`0.3.3`	2012-07-02 09:35:37 UTC
`0.3.2`	2012-05-27 21:59:46 UTC
`0.3.0`	2012-04-03 09:18:31 UTC
`0.2.1`	2012-03-20 17:35:29 UTC
`0.2.0`	2012-03-20 11:15:38 UTC
`0.1.8`	2012-03-15 19:06:56 UTC

Showing the 20 most recent of 27 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Runtime	Newest compatible version
`node 16`	`0.6.0`
`node 18`	`0.6.0`
`node 20`	`0.6.0`
`node 22`	`0.6.0`
`node 24`	`0.6.0`

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 union?

The latest stable version of union is 0.6.0, published on 2024-01-18. Verified by Vigia on 2026-11-12.

How do I install the latest version of union?

Run npm install union@latest. The latest stable version is 0.6.0 (verified 2026-11-12).

Is union deprecated?

No. union is not marked as deprecated in the registry.

Which Node.js version does union require?

union 0.6.0 declares this requirement: {"node":">= 0.8.0"}.

Does union 0.6.0 have known vulnerabilities?

No known advisories affect union 0.6.0 according to the data Vigia checks.

Is union still maintained?

union published 0 stable releases in the last 12 months; the most recent was 1029 days ago. Activity: dormant.

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

For agents

GET https://vigia.coredls.cloud/v1/packages/npm/union
GET https://vigia.coredls.cloud/v1/packages/npm/union/versions/{version}