diff --git a/experiments/analysis-efficiency/windows-posix-reconciliation.md b/experiments/analysis-efficiency/windows-posix-reconciliation.md
index 3a78b1d7cd..0df06ac3ed 100644
--- a/experiments/analysis-efficiency/windows-posix-reconciliation.md
+++ b/experiments/analysis-efficiency/windows-posix-reconciliation.md
@@ -56,7 +56,7 @@ Windows coordinates continue to use win32.relative. Both location matching
 and active-layer scope use this owner. The obsolete host-default import is
 removed; no downstream repair or new path abstraction is introduced.
 
-The related suite passed 101 tests: 15 workflow tests, 84 CI scope tests and
+The related suite passed 102 tests: 15 workflow tests, 85 CI scope tests and
 two curated-path checks. Four simulated Electron Evidence controls cover
 POSIX mismatch/exact matching, Windows case-insensitive matching, the resulting
 asset load state and retained mapping spelling. They are service regressions,
@@ -108,3 +108,21 @@ on a later implementation-only edit. The matcher implementation is now also
 registered in package scope. A source-only classifier case verifies that it
 selects both Windows package and JavaScript recovery lanes; 85 scope checks and
 two curated-path checks pass. Runtime code and the real-data checks are unchanged.
+
+The original production fix merged as
+[1a1b67c88](https://github.com/morluto/rea/commit/1a1b67c88) while this follow-up
+was open. The follow-up was then rebased onto main fb28ec153 and contains only
+the stronger workflow assertions, Windows lane ownership, scope classification
+and this verification record. The updated 131 related tests, two representative
+Ghidra boundary tests, seven IDA input-thinning tests, 24 semantic-structure
+tests, 16 required-lane checks, 39 release-checkpoint tests and 11 dyld CLI
+tests passed after the rebase (230 total).
+Upstream a0317cf73 corrected the invalid FAT fixture and consolidated unrelated
+duplicated helpers; e05d3399f aligned the older parameter-provenance assertion
+with the upstream semantics. Those changes, the threshold change and the new
+CI qualification tiers are part of main, outside this follow-up's diff.
+Upstream 747e72991 restored release preflight coverage for reusable workflow
+jobs. The independently reviewed, fully green #2755 fixture correction merged
+as fb28ec153 and restored real x64 dyld CLI admission without altering the
+original same-named arm64e assertions.
+No production source is duplicated by the follow-up.