# bug: regression / breaking since 1.4.0
`inferProcedureInput` broken in published package
🐛 bug🧙🏻 typescript wizardry
Input schemas defined with Zod does not use the inferred input type
🧙🏻 typescript wizardry
bug: Use zod v4 json schema cause type infinite error
🙋♂️ help wanted🐛 bug: unconfirmed
bug: trpc does not propertly pass down zod 4.0 branded types
🙋♂️ help wanted👻 invalidblocked🐛 bug: unconfirmed
Improve docs section for "Inferring Types"
📚 documentation / examples