Sourced from core-js's changelog.

3.47.0 - 2025.11.18

• Changes v3.46.0...v3.47.0 (117 commits)
• JSON.parse source text access proposal :
  • Built-ins:
    • JSON.isRawJSON
    • JSON.parse
    • JSON.rawJSON
    • JSON.stringify
  • Moved to stable ES, November 2025 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
  • Reworked JSON.stringify internals
• Iterator sequencing proposal:
  • Built-ins:
    • Iterator.concat
  • Moved to stable ES, November 2025 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
• Joint iteration proposal:
  • Built-ins:
    • Iterator.zip
    • Iterator.zipKeyed
  • Moved to stage 3, November 2025 TC39 meeting
  • Added /actual/ namespace entries, unconditional forced replacement changed to feature detection
• Fixed increasing .size in URLSearchParams.prototype.append polyfill in IE8-
• Compat data improvements:
  • Iterator.concat marked as shipped in FF147
  • Map upsert proposal features marked as shipped in Safari 26.2
  • Math.sumPrecise marked as shipped in Safari 26.2
  • Uint8Array.{ fromBase64, prototype.setFromBase64 } marked as fixed in Safari 26.2
  • Missed Explicit Resource Management features added in Bun 1.3.0
  • Added Oculus Quest Browser 41 compat data mapping
  • Added Electron 40 compat data mapping

3.46.0 - 2025.10.09

• Changes v3.45.1...v3.46.0 (116 commits)
• Map upsert stage 3 proposal:
  • Fixed a FF WeakMap.prototype.getOrInsertComputed bug with callback calling before validation a key
• Iterator chunking proposal:
  • Built-ins:
    • Iterator.prototype.chunks
    • Iterator.prototype.windows
  • Moved to stage 2.7, September 2025 TC39 meeting
  • Iterator.prototype.sliding method replaced with an extra parameter of Iterator.prototype.windows method, [tc39/proposal-iterator-chunking/#24](tc39/proposal-iterator-chunking#24), [tc39/proposal-iterator-chunking/#26](tc39/proposal-iterator-chunking#26)
• Fixed Iterator.zip and Iterator.zipKeyed behavior with mode: 'longest' option, #1469, thanks @​lionel-rowe
• Fixed work of Object.groupBy and Iterator.zipKeyed together with Symbol polyfill - some cases of symbol keys on result null-prototype object were able to leak out to for-in
• Compat data improvements:
  • Map upsert proposal features marked as shipped from FF144
  • Added Node 25.0 compat data mapping
  • Added Deno 2.5 compat data mapping
  • Updated Electron 39 compat data mapping
  • Updated Opera 121+ compat data mapping

... (truncated)

• c1d2c7e v3.47.0
• 400f00e move JSON.parse source text access to stable ES
• 2b383e9 move joint iteration to stage 3
• 21f984c move Iterator sequencing proposal to stable ES
• 6add4cd add explicit "sideEffects": true to core-js and core-js-bundle packages
• 0f6c98d update eslint-plugin-unicorn
• fe04540 fix increasing .size in URLSearchParams.prototype.append polyfill in IE8-
• 98d9dc4 v3.46.0
• 38420bd add homepage field to package.jsons
• a7aee4c some fixes
• Additional commits viewable in compare view

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)