npm · npm:acorn

acorn active

ECMAScript parser

The latest stable version of acorn is 8.19.0, published on 2026-10-05. 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 140 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

• 7.x → 8.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

• ue Oct 06 2026 09:44:30 GMT+0000 (Coordinated Universal Time) — released 8.19.0 → 8.19.0
• Mon Oct 05 2026 12:55:41 GM +0000 (Coordinated Universal Time) — released 8.18.0 → 8.19.0

Related packages

• estraverse
• mime-types
• cross-spawn
• yargs-parser
• react-is
• @esbuild/linux-x64
• agent-base
• picocolors
• resolve
• fs-extra
• mime-db
• hasown

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

For agents

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