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npm · npm:web-streams-polyfill

web-streams-polyfill active

Web Streams, based on the WHATWG spec reference implementation

The latest stable version of web-streams-polyfill is 4.5.1, published on 2026-11-06. Verified by Vigia on 2026-11-12.

Latest stable version4.5.1
Published2026-11-06 10:30:59 UTC
Installnpm install web-streams-polyfill@latest
Requires (engines){"node":">= 8"}
Peer dependencies—
Dist-tagsnext: 4.0.0-beta.3 latest: 4.5.1
LicenseMIT
Advisories on latest versionnone known
Last verified2026-11-12 11:09:11 UTC
Sourcesapi.deps.dev, registry.npmjs.org, registry.npmjs.org

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Maintenance

Activityactive
Last stable release2026-11-06 10:30:59 UTC · 6 days ago
Stable releases in the last 12 months4
Published versions41

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

Version history

VersionPublished
4.5.12026-11-06 10:30:59 UTC
4.5.02026-11-02 19:42:19 UTC
4.4.02026-11-02 11:57:09 UTC
4.3.02026-05-15 13:51:18 UTC
4.2.02025-08-17 13:32:33 UTC
4.1.02025-01-05 20:44:21 UTC
4.0.02024-02-28 21:53:04 UTC
3.3.32024-02-16 21:15:47 UTC
3.3.22024-01-04 17:51:22 UTC
3.3.1 withdrawn2024-01-04 17:40:05 UTC
3.3.02024-01-04 15:23:42 UTC
3.2.12022-04-07 20:29:00 UTC
3.2.02021-11-06 15:05:35 UTC
3.1.12021-09-05 22:21:14 UTC
3.1.02021-07-21 21:56:44 UTC
3.0.32021-04-09 17:12:48 UTC
3.0.22021-02-09 23:46:12 UTC
3.0.12020-11-12 00:08:03 UTC
3.0.02020-07-20 19:19:03 UTC
2.1.12020-04-11 08:44:54 UTC

Showing the 20 most recent of 38 versions. JSON

Version compatibility

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

RuntimeNewest compatible version
node 164.5.1
node 184.5.1
node 204.5.1
node 224.5.1
node 244.5.1

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Frequently asked questions

What is the latest version of web-streams-polyfill?

The latest stable version of web-streams-polyfill is 4.5.1, published on 2026-11-06. Verified by Vigia on 2026-11-12.

How do I install the latest version of web-streams-polyfill?

Run npm install web-streams-polyfill@latest. The latest stable version is 4.5.1 (verified 2026-11-12).

Is web-streams-polyfill deprecated?

No. web-streams-polyfill is not marked as deprecated in the registry.

Which Node.js version does web-streams-polyfill require?

web-streams-polyfill 4.5.1 declares this requirement: {"node":">= 8"}.

Does web-streams-polyfill 4.5.1 have known vulnerabilities?

No known advisories affect web-streams-polyfill 4.5.1 according to the data Vigia checks.

Is web-streams-polyfill still maintained?

web-streams-polyfill published 4 stable releases in the last 12 months; the most recent was 6 days ago. Activity: active.

Observed changes

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