ADR-017: contract versioning — core crate's semver is the contract version (OQ-10 resolved)

docs/architecture/decisions/015-streams-depth.md

@@ -127,7 +127,11 @@ the key the same way the non-tx form does (`None` or non-empty — an
 empty `Some` key is `InvalidName`) with no new error variants
 ([ADR-008](008-contract-v1-pinning.md) §5's rule). Framed as
 completing contract v1 in place, pre-implementation, like ADR-014 —
-no versioning event, OQ-10 untouched. A plain-`publish_tx` is
+no versioning event, OQ-10 untouched. *(Codified 2026-10-06 as
+versioning class 1 by
+[ADR-017](017-contract-versioning.md) — and bounded by it: this
+amend-in-place frame terminates at the core crate's first
+release.)* A plain-`publish_tx` is
 `publish_with_key_tx(stream, None, payload)`, not a separate
 engine path. *(Naming pinned here too: the publish family returns the
 **assigned offset** — honker's `publish` already returns it — and the