diff --git a/.changeset/tender-camels-switch.md b/.changeset/tender-camels-switch.md
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+---
+"@fixture-kit/core": major
+---
+
+This is the first stable release of fixture-kit.
+
+After extensive use in real-world tests, the public API has stabilized. With 1.0, we’re making that stability official.
+
+If you’re using 0.1.0, you can upgrade to `@fixture-kit/core@1.0.0` without changing your code.