npm / jsonpack
jsonpack
What changed in jsonpack 2, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-27.
2 breaking1 new APIs and options1 performance1 fixes and other
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli initjsonpack 25 changes
Breaking changes 2
AMD compatibility was dropped.
IE8 compatibility was dropped.
New APIs and options 1
The package now has dual CommonJS and ES module output.
Performance 1
Packing performance was improved.
Fixes and other changes 1
Array detection is now checked properly.