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v0.1.0-beta.19

core, express, fastify, fetch, hono, next, server, tanstack-query:

  • Redesign contract declaration around fluent, per-route builders. This is a (1ea1c91)

core, tanstack-query:

  • Update several helper types to render in prettier way when hovering over them in IDEs. This is a purely cosmetic change and does not affect the actual types. (cd60c4c)

server:

  • Allow RouteResponseError to be scoped to any part of the contract not just specific route so it’s easier to use in shared code with common responses. Additionally fix an issue where RouteResponseError declared errors thrown by the route handler would not go through response validation correctly. Also fix an issue where shorthand response with status field was allowed and could lead to unpredictable behaviour (f10e616)

Last updated on September 2, 2026

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