Bump immutable from 3.8.2 to 3.8.3

[dependabot]

Bumps immutable from 3.8.2 to 3.8.3.

Release notes

Sourced from immutable's releases.

v3.8.3

Fix Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in immutable

Changelog

Sourced from immutable's changelog.

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning. Dates are formatted as YYYY-MM-DD.

Unreleased

5.1.9

• fix(List): a List grown past 32 elements while all its values are undefined no longer reads those values back as null (affected get, iteration, toArray, equals and hashCode)

5.1.8

• fix(List): guard oversized bounds in setListBounds. Fixes CVE GHSA-v56q-mh7h-f735
• perf(Map): index large hash-collision buckets for faster lookups. Fixes CVE GHSA-xvcm-6775-5m9r

4.3.9

• fix(List): guard oversized bounds in setListBounds. Fixes CVE GHSA-v56q-mh7h-f735
• perf(Map): index large hash-collision buckets for faster lookups. Fixes CVE GHSA-xvcm-6775-5m9r

5.1.7

• fix(Repeat): lastIndexOf returned size instead of size - 1 by @​chatman-media in immutable-js/immutable-js#2227. Fixes CVE CVE-2026-29063
• fix(IndexedCollection): has(index) on a lazy Seq of unknown size now checks index existence instead of searching for a value equal to the index #2203
• [TypeScript]: reduce/reduceRight without an initial value now infer the result type from the collection's values when the reducer returns a value (e.g. list.reduce((a, b) => a + b) infers number), matching Array#reduce. Previously an explicit type argument was required. #2205

5.1.6

• fix(reverseFactory): read reversedSequence.size in __iterator instead of this #2196

5.1.5

• Fix Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in immutable

5.1.4

• Migrate some files to TS by @​jdeniau in immutable-js/immutable-js#2125
  • Iterator.ts
  • PairSorting.ts
  • toJS.ts
  • Math.ts
  • Hash.ts
• Extract CollectionHelperMethods and convert to TS by @​jdeniau in immutable-js/immutable-js#2131
• Use npm trusted publishing only to avoid token stealing.

Documentation

... (truncated)

Commits

• c407425 bump v3.8.3
• c6ff68a release script on 3.x branch
• a675a66 Merge pull request #2179 from immutable-js/port-patch-for-cve-2026-29063
• 6e2cf1c Port patch for CVE 2026-29063 onto branch 3.x
• See full diff in compare view

Maintainer changes

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