diff --git a/changed_files.json b/changed_files.json
index 2baefa4..2b0c8e1 100644
--- a/changed_files.json
+++ b/changed_files.json
@@ -1,3 +1,8 @@
 [
-  "R/ARMA.R"
+  "DESCRIPTION",
+  "NNS_13.0.tar.gz",
+  "NNS_13.0.zip",
+  "R/Multivariate_Regression.R",
+  "src/NNS.dll",
+  "tests/testthat/Rplots.pdf"
 ]
diff --git a/sync/last_live_r_parity_report.md b/sync/last_live_r_parity_report.md
index 09eb22d..7e3ee2f 100644
--- a/sync/last_live_r_parity_report.md
+++ b/sync/last_live_r_parity_report.md
@@ -6,9 +6,8 @@
 - Skip install: `False`
 - Live R recompute: `True`
 
-## Result: live R parity diverged
+## Result: manual review required
 
-Mapped parity tests recomputed every R value from the freshly installed live R NNS and the Python implementation did not match. Public Python behavior differs from live R at the recorded commit.
+The plan reports unmapped R files. A human must extend `sync/r_api_map.json` before automated parity can run:
 
-Failing command: `/opt/hostedtoolcache/Python/3.11.15/x64/bin/python -m pytest -q -n 0 tests/parity/test_practical_examples.py tests/parity/test_r13_smoke.py`
-Exit status: `1`
+- `R/Multivariate_Regression.R`
diff --git a/sync/last_r_api_inspection.md b/sync/last_r_api_inspection.md
index 79defb7..5b732db 100644
--- a/sync/last_r_api_inspection.md
+++ b/sync/last_r_api_inspection.md
@@ -2,25 +2,33 @@
 
 ## Changed files
 
-- `R/ARMA.R`
+- `DESCRIPTION`
+- `NNS_13.0.tar.gz`
+- `NNS_13.0.zip`
+- `R/Multivariate_Regression.R`
+- `src/NNS.dll`
+- `tests/testthat/Rplots.pdf`
 
 ## Affected Python modules
 
-- `src/nns/arma.py`
+- `pyproject.toml`
+- `tests/_r_cache.json`
+- `tools/NNS`
 
 ## Parity tests to run
 
-- `tests/parity/test_practical_examples.py`
-- `tests/parity/test_r13_smoke.py`
+- `tests/parity`
 
 ## Cache scope
 
-- `NNS.ARMA`
-- `NNS.ARMA.optim`
-- `NNS.VAR`
+- None mapped
 
 ## Required actions
 
-- Fresh cache required: `False`
+- Fresh cache required: `True`
 - Export review required: `False`
-- Unmapped R files present: `False`
+- Unmapped R files present: `True`
+
+## Unmapped R files
+
+- `R/Multivariate_Regression.R`
diff --git a/sync/last_r_api_plan.json b/sync/last_r_api_plan.json
index 6fef8d5..b3e335c 100644
--- a/sync/last_r_api_plan.json
+++ b/sync/last_r_api_plan.json
@@ -1,22 +1,26 @@
 {
   "changed_files": [
-    "R/ARMA.R"
+    "DESCRIPTION",
+    "NNS_13.0.tar.gz",
+    "NNS_13.0.zip",
+    "R/Multivariate_Regression.R",
+    "src/NNS.dll",
+    "tests/testthat/Rplots.pdf"
   ],
   "affected_python_modules": [
-    "src/nns/arma.py"
+    "pyproject.toml",
+    "tests/_r_cache.json",
+    "tools/NNS"
   ],
   "parity_tests": [
-    "tests/parity/test_practical_examples.py",
-    "tests/parity/test_r13_smoke.py"
+    "tests/parity"
   ],
-  "cache_scope": [
-    "NNS.ARMA",
-    "NNS.ARMA.optim",
-    "NNS.VAR"
-  ],
-  "requires_fresh_cache": false,
+  "cache_scope": [],
+  "requires_fresh_cache": true,
   "requires_export_review": false,
-  "has_unmapped_r_files": false,
-  "unmapped_r_files": [],
+  "has_unmapped_r_files": true,
+  "unmapped_r_files": [
+    "R/Multivariate_Regression.R"
+  ],
   "warnings": []
 }
diff --git a/upstream/NNS b/upstream/NNS
index 7250bb6..8183e96 160000
--- a/upstream/NNS
+++ b/upstream/NNS
@@ -1 +1 @@
-Subproject commit 7250bb627d12f6cdb1dbe60a8b8e50385e2a7c41
+Subproject commit 8183e964c941d9981e19b23dfbc9fc8336903d89