Immutable.js Files

Immutable collections for JavaScript

This is an exact mirror of the Immutable.js project, hosted at https://github.com/immutable-js/immutable-js. SourceForge is not affiliated with Immutable.js.

The interactive file manager requires Javascript. Please enable it or use sftp or scp.
You may still browse the files here.

Name	Modified	Size	InfoDownloads / Week
Parent folder
README.md	2026-06-29	335 Bytes	0
v5.1.9 source code.tar.gz	2026-06-29	1.3 MB	0
v5.1.9 source code.zip	2026-06-29	1.4 MB	1
Totals: 3 Items		2.7 MB	1

What's Changed

fix(List): preserve undefined values when grown past 32 elements by @spokodev / @jdeniau in https://github.com/immutable-js/immutable-js/pull/2235 (originated from https://github.com/immutable-js/immutable-js/pull/2230 )

Full Changelog: https://github.com/immutable-js/immutable-js/compare/v5.1.8...v5.1.9

Source: README.md, updated 2026-06-29

Other Useful Business Software

Our Free Plans just got better! | Auth0

With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.

Try free now

Go from Code to Production URL in Seconds

Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

Skip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.

Try it free

Our Free Plans just got better! | Auth0

With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

Try free now

Recommended Projects

ClojureScript
Compiler for Clojure that targets JavaScript
Accessors.jl
Update immutable data
DataScript
Immutable database and Datalog query engine for Clojure, ClojureScript
C# Algorithms
Plug-and-play class-library project of standard data structures
kanso
An immutable distro with niri and noctalia-shell offering an OOTB exp

Immutable.js Files

Immutable collections for JavaScript

Get an email when there's a new version of Immutable.js

What's Changed