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charlesvien
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Apr 3, 2026
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I updated the deprecated usages, LGTM!
Use --notes-file to avoid shell escaping issues
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Problem
Zod version 3 requires lots of external dependencies to work well with json schema. Json schema usage will increase as we add structured outputs.
Changes
Bumps the version of Zod from v3 to v4 and makes minimal changes required for compatibility.
How did you test this?
Running all tests and verifying that they are working correctly. Running PostHog Code locally and verifying that the agent service still works properly.