npm · npm:js-yaml

js-yaml active

YAML 1.2 parser and serializer

The latest stable version of js-yaml is 5.5.0, published on 2026-10-15. Verified by Vigia on 2026-11-12.

Maintenance

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

Version history

Showing the 20 most recent of 92 versions. JSON

Version compatibility

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

Upgrade guides for this package

• 4.x → 5.x

Give your AI agent these facts

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

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

Frequently asked questions

Observed changes

• Fri Oct 16 2026 00:03:09 GM +0000 (Coordinated Universal Time) — released 5.5.0 → 5.5.0
• hu Oct 15 2026 23:32:57 GMT+0000 (Coordinated Universal Time) — released 5.4.3 → 5.5.0
• Mon Oct 05 2026 22:27:55 GM +0000 (Coordinated Universal Time) — released 5.4.2 → 5.4.3

Related packages

• is-fullwidth-code-point
• entities
• esbuild
• globals
• postcss
• signal-exit
• iconv-lite
• isexe
• ignore
• isarray
• undici-types
• path-key

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

For agents

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