# Theme Runtime Specs

These are versioned long-form contract documents for the theme runtime. Use the [Theme Runtime Reference](../index.md) for day-to-day lookup and the current schema link.

- [Theme Runtime Spec v0.7](v0.7/index.md) — Current
- [Theme Runtime Spec v0.6](v0.6/index.md) — Historical
- [Theme Runtime Spec v0.5](v0.5/index.md) — Historical