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+# PR #749 foundation rebase and SDS review
+
+The implementation is based on main `b7c0f08a`, including the merged #737 design.
+Commit `79eb631a` preserves the prior implementation tree while removing the
+already-squashed documentation history. Fixes are in `070fad6e` and `3c840ff9`.
+
+## Corrections
+
+- An unchanged definition previously authorized reading an older generation.
+  The compatibility map and read path are removed; adoption metadata is rejected.
+- After restart, the persisted resolver could send fresh input to an excluded,
+  completed old series. The old physical address is reserved and fresh writes
+  allocate a new series.
+- A live version change now authorizes the same fresh allocation without first
+  requiring the old series to be removed.
+
+Metadata, store-visibility and live-reactivation regressions fail before their
+fixes. The process test also exposed the completed-series rejection before the
+fresh-allocation fix. Those failure logs are retained.
+
+## Validation
+
+On the corrected #749 code:
+
+- 112 type-library tests, 427 control-plane tests and 1,161 data-plane tests pass.
+- The production-process test recovers the same version without re-ingestion,
+  verifies a new version is cold, then ingests fresh data and verifies its result.
+- Strict all-target Clippy passes for those three packages.
+
+The data-plane suite and process test were rerun after the final allocation fix.
+No production-cost or independent human approval claim is made.
+
+## Scope
+
+This is the plan/schema foundation described in #737's staged migration, not the
+completed SDS implementation. Its policy-fingerprint-based schema remains
+transitional. Canonical semantic definitions, independent deployed-output
+identity and explicit logical dataset identity land in #774 using Planner #462;
+subsequent PRs complete shared execution and storage integration. The developer
+installation guide and PR description make that boundary explicit.
+
+Compressed logs are checked by `SHA256SUMS`.
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+2d8020ab240b66cfb189e00691c678619dbfd0efa3c3f21aae92e5efa8c76dc5  pr749-final-data-plane.log.gz
+271c6756f25644a56cc2fb0fbee5c3b7a1dc98014f580f53a7ec6210227f0de3  pr749-final-process.log.gz
+b068361a9e0e495b03251b457081a8c441bcbc7a57ede7bef1b3b1750e349b40  pr749-library-tests.log.gz
+d1765747adb31af751181c16ada19eef7b35739c39d55f7ccc111e3f0916bc3b  pr749-live-before-fix.log.gz
+f91df10f88497203a438a9a5e1bc7f0655c20451a1055c44b09f2c29d6401085  pr749-recovery-e2e.log.gz
+d0c1ede2fd39feaf9db03e1c6df2047ce8344043c6460e7d465f7a7c67217a30  pr749-store-before-fix.log.gz