versioning

docs/src/operator/versioning.md

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+# Versioning
+
+We follow the [semver](https://semver.org/) standard for versioning.
+
+The following is considered the node's public API, and will therefore be considered as breaking changes.
+
+- RPC gRPC specification (note that this _excludes_ inter-component gRPC schemas).
+- Node configuration options.
+- Database schema changes.
+
+We intend to include our OpenTelemetry trace specification in this once it standardizes.
+
+We _will_ also call out non-breaking behvioral changes in our changelog and release notes.