diff --git a/scripts/kb-update/lib/transform.mjs b/scripts/kb-update/lib/transform.mjs
index 87a12df..14a1fdc 100644
--- a/scripts/kb-update/lib/transform.mjs
+++ b/scripts/kb-update/lib/transform.mjs
@@ -148,6 +148,30 @@ export function buildKbHeader(meta) {
   return `${header}\n---\n`;
 }
 
+/**
+ * Format the `verified_by` judge-version label. Returns the WHOLE label (`judge-v3.1`).
+ * Absence (undefined) → the current JUDGE_VERSION default; otherwise the value — an integer
+ * major (`3` → judge-v3) or a `major.minor` string/float (`'3.2'`/`3.2` → judge-v3.2) — is
+ * validated against a strict numeric-label regex and honoured. Mirrors the DATE_RE throw
+ * discipline (stampVerifiedMeta): a malformed label THROWS rather than silently falling back
+ * to the default, so a caller bug surfaces instead of shipping a mislabelled provenance stamp
+ * into a public file.
+ *
+ * @param {number|string} [judgeVersion] — integer major or `major.minor`; absent → default
+ * @returns {string} the `judge-v<label>` provenance label
+ * @throws if judgeVersion is present but not a `\d+(\.\d+)?` numeric label
+ */
+function formatJudgeVersion(judgeVersion) {
+  if (judgeVersion === undefined) return `judge-v${JUDGE_VERSION}`;
+  const label = String(judgeVersion);
+  if (!/^\d+(?:\.\d+)?$/.test(label)) {
+    throw new Error(
+      `formatJudgeVersion: malformed judge version '${judgeVersion}' (expected integer or major.minor)`,
+    );
+  }
+  return `judge-v${label}`;
+}
+
 /**
  * Born-verified gate (Spor 3 Port 2): stamp `verified`/`verified_by` onto a reference
  * meta IFF the judge verdict passed — otherwise REFUSE (throw). This encodes
@@ -157,7 +181,7 @@ export function buildKbHeader(meta) {
  * failing verdict means no file is born.
  *
  * @param {object} baseMeta — the reference meta (title/status/category/source/lastUpdated)
- * @param {{pass: boolean, judgeVersion?: number, by?: 'human'}} verdict
+ * @param {{pass: boolean, judgeVersion?: number|string, by?: 'human'}} verdict
  * @param {string} today — YYYY-MM or YYYY-MM-DD, supplied by the caller (lib stays pure)
  * @returns {object} baseMeta with type='reference' + verified + verified_by set
  * @throws if the verdict is not passing, or today is not a valid date
@@ -169,14 +193,12 @@ export function stampVerifiedMeta(baseMeta, verdict, today) {
   if (!DATE_RE.test(String(today ?? ''))) {
     throw new Error(`stampVerifiedMeta: invalid today date '${today}' (expected YYYY-MM[-DD])`);
   }
-  // Default stamp = the current JUDGE_VERSION label ('3.1'). An explicit integer override
-  // is still honoured (judgeVersion:3 → judge-v3); a minor-bearing string override is not
-  // yet (falls back to default) — tracked as a §8 follow-up, harmless since the pipeline
-  // always uses the default.
+  // Default stamp = the current JUDGE_VERSION label ('3.1'). An explicit override — integer
+  // (judgeVersion:3 → judge-v3) OR minor-bearing string/float (judgeVersion:'3.2' → judge-v3.2)
+  // — is honoured via formatJudgeVersion, which THROWS on a malformed label rather than silently
+  // falling back (§8 follow-up closed: the string override is no longer dropped).
   const verifiedBy =
-    verdict.by === 'human'
-      ? 'human'
-      : `judge-v${Number.isInteger(verdict.judgeVersion) ? verdict.judgeVersion : JUDGE_VERSION}`;
+    verdict.by === 'human' ? 'human' : formatJudgeVersion(verdict.judgeVersion);
   return { ...baseMeta, type: 'reference', verified: today, verified_by: verifiedBy };
 }
 
diff --git a/tests/kb-update/test-transform.test.mjs b/tests/kb-update/test-transform.test.mjs
index c8ad2a0..afb160a 100644
--- a/tests/kb-update/test-transform.test.mjs
+++ b/tests/kb-update/test-transform.test.mjs
@@ -208,6 +208,58 @@ test('stampVerifiedMeta honours an explicit judgeVersion', () => {
   assert.equal(stampVerifiedMeta(base, { pass: true, judgeVersion: 3 }, '2026-06-29').verified_by, 'judge-v3');
 });
 
+// --- G2: version-label generalisation (formatJudgeVersion via stampVerifiedMeta) -----
+// The stamp guard now honours a minor-bearing label ('3.2' → judge-v3.2), preserves the
+// integer path (regression above), defaults on absence, and THROWS on a malformed label
+// rather than silently falling back — a mislabel would be a provenance lie in a public file.
+
+test('stampVerifiedMeta honours a minor-bearing string judgeVersion override', () => {
+  const base = { title: 'T', status: 'GA', category: 'c',
+    source: 'https://learn.microsoft.com/x', lastUpdated: '2026-06' };
+  assert.equal(
+    stampVerifiedMeta(base, { pass: true, judgeVersion: '3.2' }, '2026-06-29').verified_by,
+    'judge-v3.2',
+  );
+});
+
+test('stampVerifiedMeta honours a float judgeVersion override', () => {
+  const base = { title: 'T', status: 'GA', category: 'c',
+    source: 'https://learn.microsoft.com/x', lastUpdated: '2026-06' };
+  assert.equal(
+    stampVerifiedMeta(base, { pass: true, judgeVersion: 3.2 }, '2026-06-29').verified_by,
+    'judge-v3.2',
+  );
+});
+
+test('stampVerifiedMeta defaults verified_by to judge-v3.1 when judgeVersion is absent', () => {
+  const base = { title: 'T', status: 'GA', category: 'c',
+    source: 'https://learn.microsoft.com/x', lastUpdated: '2026-06' };
+  assert.equal(
+    stampVerifiedMeta(base, { pass: true }, '2026-06-29').verified_by,
+    'judge-v3.1',
+  );
+});
+
+test('stampVerifiedMeta throws on a malformed judgeVersion label (no silent fallback)', () => {
+  const base = { title: 'T', status: 'GA', category: 'c',
+    source: 'https://learn.microsoft.com/x', lastUpdated: '2026-06' };
+  for (const bad of ['3.2.1', '', 'v3', '3.2 x']) {
+    assert.throws(
+      () => stampVerifiedMeta(base, { pass: true, judgeVersion: bad }, '2026-06-29'),
+      /judge version|malformed/i,
+      `expected throw for judgeVersion=${JSON.stringify(bad)}`,
+    );
+  }
+});
+
+test('stampVerifiedMeta → composeKbFile round-trips a minor-bearing judge version (end-to-end)', () => {
+  const base = { title: 'Azure AI Search', status: 'GA', category: 'rag-architecture',
+    source: 'https://learn.microsoft.com/azure/search/x', lastUpdated: '2026-06' };
+  const stamped = stampVerifiedMeta(base, { pass: true, judgeVersion: '3.2' }, '2026-06-29');
+  const file = composeKbFile(stamped, '## Introduksjon\n\nKort.\n');
+  assert.equal(parseVerifiedByHeader(file), 'judge-v3.2');
+});
+
 test('stampVerifiedMeta supports a human verification path', () => {
   const base = { title: 'T', status: 'GA', category: 'c',
     source: 'https://learn.microsoft.com/x', lastUpdated: '2026-06' };