spidermonkey@115 ☆

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Description:
JavaScript-C Engine

Type: Formula | Latest Version: 115.22.0@0 | Tracked Since: Nov 26, 2025

Links: Homepage | @Mozilla | formulae.brew.sh

Category: Developer tools

Tags: javascript engine browser mozilla runtime

Install: brew install spidermonkey@115

About:
SpiderMonkey is Mozilla's JavaScript-C engine, written in C++ and Rust. It implements the ECMAScript standard and provides the core scripting capabilities for applications like Firefox. This version (115) is an LTS release suitable for embedding JavaScript into C++ applications.

Key Features:

ECMAScript compliant engine
JIT compilation for high performance
Embeddable API for C++ integration
Supports modern JavaScript features

Use Cases:

Embedding a scripting engine into C++ applications
Browser engine development
JavaScript runtime analysis tools

Alternatives:

v8 – Google's engine used in Chrome/Node.js; generally faster adoption of new JS features
javascriptcore – Apple's engine used in Safari; tightly integrated with macOS ecosystem

Version History

Detected	Version	Rev	Change	Commit
Nov 26, 2025 11:04pm	115.22.0	0	VERSION_BUMP	27c243dd
Jan 7, 2025 5:17pm	115.19.0	0	VERSION_BUMP	45a1b3e4
Nov 26, 2024 4:34pm	115.18.0	0	VERSION_BUMP	2df8e06f
Oct 31, 2024 7:27am	115.17.0	1	VERSION_BUMP	6dc28768
Oct 31, 2024 12:43am	115.17.0	1	VERSION_BUMP	b3110522
Oct 29, 2024 5:16pm	115.17.0	0	VERSION_BUMP	ea66181c
Oct 29, 2024 3:59pm	115.17.0	0	VERSION_BUMP	27ea3c73
Oct 9, 2024 5:27pm	115.16.1	0	VERSION_BUMP	fa16247b
Oct 1, 2024 2:31pm	115.16.0	0	VERSION_BUMP	5d89e965
Sep 17, 2024 7:16pm	115.15.0	0	VERSION_BUMP	a5a9ff91