diff --git a/src/lib/db/migrationRunner.ts b/src/lib/db/migrationRunner.ts
index c5470b6b1e..83d6a90420 100644
--- a/src/lib/db/migrationRunner.ts
+++ b/src/lib/db/migrationRunner.ts
@@ -465,13 +465,13 @@ function isSchemaAlreadyApplied(
       // exists the rebuild ran — skip re-executing the rename/copy/drop, which
       // would fail on the missing proxy_assignments_pre117 table.
       return hasColumn(db, "proxy_assignments", "position");
-    // Retroactive guard for the 135/136 renumber (#8523 landed onto slots already taken
-    // by #8908/#9515): a DB that ran these under the old numbers already has the column,
-    // and a bare ALTER TABLE ADD COLUMN would throw on the re-run under the new number.
+    // Retroactive schema guards for migrations renumbered after release-branch collisions.
     case "137":
       return hasColumn(db, "version_manager", "auto_restart_adopted");
     case "138":
       return hasColumn(db, "upstream_proxy_config", "fallback_backend");
+    case "139":
+      return hasTable(db, "ccr_blocks");
     default:
       return false;
   }
diff --git a/src/lib/db/migrationRunner/constants.ts b/src/lib/db/migrationRunner/constants.ts
index 9f678386c7..697fe3b31d 100644
--- a/src/lib/db/migrationRunner/constants.ts
+++ b/src/lib/db/migrationRunner/constants.ts
@@ -69,6 +69,12 @@ export const RENAMED_MIGRATION_COMPATIBILITY = [
     toVersion: "059",
     toName: "manifest_routing",
   },
+  {
+    fromVersion: "134",
+    fromName: "ccr_blocks",
+    toVersion: "139",
+    toName: "ccr_blocks",
+  },
 ] as const;
 
 export const LEGACY_VERSION_SLOT_MIGRATIONS = [
diff --git a/src/lib/db/migrations/134_ccr_blocks.sql b/src/lib/db/migrations/139_ccr_blocks.sql
similarity index 100%
rename from src/lib/db/migrations/134_ccr_blocks.sql
rename to src/lib/db/migrations/139_ccr_blocks.sql
diff --git a/tests/unit/db-ccr-migration-renumber-134.test.ts b/tests/unit/db-ccr-migration-renumber-134.test.ts
new file mode 100644
index 0000000000..dd31c3f1bc
--- /dev/null
+++ b/tests/unit/db-ccr-migration-renumber-134.test.ts
@@ -0,0 +1,79 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import Database from "better-sqlite3";
+
+const migrationsDir = fs.mkdtempSync(path.join(os.tmpdir(), "omniroute-ccr-migration-"));
+const originalMigrationsDir = process.env.OMNIROUTE_MIGRATIONS_DIR;
+process.env.OMNIROUTE_MIGRATIONS_DIR = migrationsDir;
+
+fs.writeFileSync(
+  path.join(migrationsDir, "134_proxy_logs_egress_ip.sql"),
+  "ALTER TABLE proxy_logs ADD COLUMN egress_ip TEXT;"
+);
+fs.writeFileSync(
+  path.join(migrationsDir, "139_ccr_blocks.sql"),
+  "CREATE TABLE ccr_blocks (principal_id TEXT PRIMARY KEY);"
+);
+
+const { runMigrations } = await import("../../src/lib/db/migrationRunner.ts");
+
+function createLegacyDb(appliedName: string) {
+  const db = new Database(":memory:");
+  db.exec(`
+    CREATE TABLE proxy_logs (id TEXT PRIMARY KEY);
+    CREATE TABLE ccr_blocks (principal_id TEXT PRIMARY KEY);
+    CREATE TABLE _omniroute_migrations (
+      version TEXT PRIMARY KEY,
+      name TEXT NOT NULL,
+      applied_at TEXT NOT NULL DEFAULT (datetime('now'))
+    );
+  `);
+  db.prepare("INSERT INTO _omniroute_migrations (version, name) VALUES (?, ?)").run(
+    "134",
+    appliedName
+  );
+  return db;
+}
+
+test.after(() => {
+  fs.rmSync(migrationsDir, { recursive: true, force: true });
+  if (originalMigrationsDir === undefined) delete process.env.OMNIROUTE_MIGRATIONS_DIR;
+  else process.env.OMNIROUTE_MIGRATIONS_DIR = originalMigrationsDir;
+});
+
+test("renumbered CCR migration frees 134 for proxy_logs on existing databases", () => {
+  const db = createLegacyDb("ccr_blocks");
+  try {
+    assert.equal(runMigrations(db), 1);
+    assert.deepEqual(
+      db.prepare("SELECT version, name FROM _omniroute_migrations ORDER BY version").all(),
+      [
+        { version: "134", name: "proxy_logs_egress_ip" },
+        { version: "139", name: "ccr_blocks" },
+      ]
+    );
+    const columns = db.prepare("PRAGMA table_info(proxy_logs)").all() as Array<{ name: string }>;
+    assert.ok(columns.some((column) => column.name === "egress_ip"));
+  } finally {
+    db.close();
+  }
+});
+
+test("renumbered CCR migration marks an existing table without recreating it", () => {
+  const db = createLegacyDb("proxy_logs_egress_ip");
+  try {
+    assert.equal(runMigrations(db), 1);
+    assert.deepEqual(
+      db.prepare("SELECT version, name FROM _omniroute_migrations ORDER BY version").all(),
+      [
+        { version: "134", name: "proxy_logs_egress_ip" },
+        { version: "139", name: "ccr_blocks" },
+      ]
+    );
+  } finally {
+    db.close();
+  }
+});
diff --git a/tests/unit/db-migrationrunner-constants-split.test.ts b/tests/unit/db-migrationrunner-constants-split.test.ts
index 7c87fac93f..7da7d426ad 100644
--- a/tests/unit/db-migrationrunner-constants-split.test.ts
+++ b/tests/unit/db-migrationrunner-constants-split.test.ts
@@ -70,8 +70,8 @@ describe("migrationRunner/constants — exact small-table snapshots", () => {
 // ── large tables — count + shape + spot-checks (corruption guard) ─────────────
 
 describe("migrationRunner/constants — large-table integrity", () => {
-  it("RENAMED_MIGRATION_COMPATIBILITY has 10 well-formed entries", () => {
-    assert.equal(RENAMED_MIGRATION_COMPATIBILITY.length, 10);
+  it("RENAMED_MIGRATION_COMPATIBILITY has 11 well-formed entries", () => {
+    assert.equal(RENAMED_MIGRATION_COMPATIBILITY.length, 11);
     for (const e of RENAMED_MIGRATION_COMPATIBILITY) {
       assert.equal(typeof e.fromVersion, "string");
       assert.equal(typeof e.fromName, "string");
@@ -91,6 +91,12 @@ describe("migrationRunner/constants — large-table integrity", () => {
     // both manifest_routing collisions (052→059 and 056→059) must survive
     const manifest = RENAMED_MIGRATION_COMPATIBILITY.filter((e) => e.toName === "manifest_routing");
     assert.deepEqual(manifest.map((e) => e.fromVersion).sort(), ["052", "056"]);
+    assert.deepEqual(RENAMED_MIGRATION_COMPATIBILITY.at(-1), {
+      fromVersion: "134",
+      fromName: "ccr_blocks",
+      toVersion: "139",
+      toName: "ccr_blocks",
+    });
   });
 
   it("PHYSICAL_SCHEMA_SENTINELS has 15 well-formed entries incl. the newest 064", () => {