npm / itty-router
itty-router
What changed in itty-router 5, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-19.
2 fixes and other
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli inititty-router 52 changes
Fixes and other changes 2
Greedy params like /a/:b+ no longer reject /a while accepting /a/.
cors/corsify no longer throws an immutable headers error in an edge case.