# Changelog

## 0.2.1 - 2026-09-28

First public release under MIT.

- `assertShape()` validates a payload with any zod-style parser and throws a
  framework-independent `ContractDriftError`. Zod 4 symbol paths are handled.
- `expectFields()` and `assertFields()` check that requested fields actually
  came back, treating `null` as present and `undefined` as absent.
- `coverage()` measures contract-check coverage against a floor and lists
  the uncovered endpoints.
- `fieldReport()`, `coverageReport()`, `formatFields()` and
  `formatCoverage()` produce `@extant2000/evidence-record` reports. An empty
  surface is not assessed.