diff --git a/system-update/release-manifest.json b/system-update/release-manifest.json
index 50c96f6..482d132 100644
--- a/system-update/release-manifest.json
+++ b/system-update/release-manifest.json
@@ -1,10 +1,10 @@
 {
   "schemaVersion": 1,
   "channel": "stable",
-  "releaseId": "3.28.1.20261011.3-2aa4d1f16159",
-  "productVersion": "3.28.1.20261011.3",
+  "releaseId": "3.28.2.20261011.4-86e94f19e538",
+  "productVersion": "3.28.2.20261011.4",
   "platform": "linux/amd64",
-  "publishedAt": "2026-10-11T08:59:38.837214+00:00",
+  "publishedAt": "2026-10-11T09:46:39.697960+00:00",
   "managedUpdateAllowed": true,
   "scheduledUpdateAllowed": true,
   "rollbackSafe": true,
@@ -15,9 +15,9 @@
     {
       "key": "server-main",
       "image": "registry.cn-shanghai.aliyuncs.com/comfy-ai/comfy-server",
-      "digest": "sha256:51070a417dbc76cc32fe4376e55fe964ee370c2d05730626d43635c3f2f5ada6",
-      "buildId": "03d8b0ffe7a42918a780b1a8591ea94cb818d47b",
-      "imageSizeBytes": 989020197
+      "digest": "sha256:2077104a3d9f1cba68eb31911bb00a26d2c154eda2c897fb031c162559379e11",
+      "buildId": "607c5ee243936bba394579c7bc94ca0b2f62cda6",
+      "imageSizeBytes": 989020204
     },
     {
       "key": "ws-gateway",
@@ -29,9 +29,9 @@
     {
       "key": "web",
       "image": "registry.cn-shanghai.aliyuncs.com/comfy-ai/one-ai",
-      "digest": "sha256:12991654387d41e390859a0e98541b7be135f41af29c4f40b0ecb2fa3ba4a689",
-      "buildId": "360ae7a565981606a878ae9fd42008bc2f88b592",
-      "imageSizeBytes": 347945972
+      "digest": "sha256:279da715ec67c2017c06ca31c8f7e172b703b99c5378404d24198af919c460dc",
+      "buildId": "f1925755cb481b9c3a609996333d26bf47da5302",
+      "imageSizeBytes": 347958996
     }
   ]
 }
diff --git a/system-update/releases/canvas-save-3.28.2.20261011.4.json b/system-update/releases/canvas-save-3.28.2.20261011.4.json
new file mode 100644
index 0000000..84c79fd
--- /dev/null
+++ b/system-update/releases/canvas-save-3.28.2.20261011.4.json
@@ -0,0 +1,182 @@
+{
+  "schemaVersion": 1,
+  "productVersion": "3.28.2.20261011.4",
+  "operationId": "epochlyra-refresh-confirm-release-m5-20261011-v1",
+  "taskId": "epochlyra-canvas-save-release-acceptance-20261011",
+  "createdAt": "2026-10-11T09:46:39.726277+00:00",
+  "source": {
+    "backend": {
+      "branch": "main",
+      "sha": "607c5ee243936bba394579c7bc94ca0b2f62cda6",
+      "requiredFix": "2d05f64abca0a401cfab7d86d976ee5d248c8049",
+      "businessCodeChanged": false
+    },
+    "web": {
+      "branch": "dev",
+      "sha": "f1925755cb481b9c3a609996333d26bf47da5302",
+      "requiredFix": "f1925755cb481b9c3a609996333d26bf47da5302",
+      "requiredFixes": [
+        "f1925755cb481b9c3a609996333d26bf47da5302",
+        "fbf176371cf49f397489876ae49c18528570d1f5"
+      ]
+    }
+  },
+  "change": "Refresh of an unconfirmed pending save restores paused editing and asks for retry; acknowledgement of the immutable original request precedes later queued edits. Explicit 409 and legacy draft conflict protection remain.",
+  "manifest": {
+    "path": "system-update/release-manifest.json",
+    "releaseId": "3.28.2.20261011.4-86e94f19e538",
+    "sha256": "8a79489034213c5998429f7ed41d080b126b3f4653f9cd961918bee5e1dacf6c"
+  },
+  "images": [
+    {
+      "key": "server-main",
+      "image": "registry.cn-shanghai.aliyuncs.com/comfy-ai/comfy-server",
+      "versionTag": "3.28.2.20261011.4",
+      "floatingTag": "latest",
+      "digest": "sha256:2077104a3d9f1cba68eb31911bb00a26d2c154eda2c897fb031c162559379e11",
+      "configDigest": "sha256:fa754ec7fba17dfb75797ba80073c90fc2b89f72450b0a15af7ed879d310cd65",
+      "buildId": "607c5ee243936bba394579c7bc94ca0b2f62cda6",
+      "imageSizeBytes": 989020204,
+      "platform": "linux/amd64",
+      "tagsMatch": true,
+      "actualVersionLabelMatched": true,
+      "actualRevisionLabelMatched": true
+    },
+    {
+      "key": "web",
+      "image": "registry.cn-shanghai.aliyuncs.com/comfy-ai/one-ai",
+      "versionTag": "3.28.2.20261011.4",
+      "floatingTag": "latest",
+      "digest": "sha256:279da715ec67c2017c06ca31c8f7e172b703b99c5378404d24198af919c460dc",
+      "configDigest": "sha256:b65ecb96d83180835b094588d03f71983f10c83abb23e94bf00e55df2c659bb4",
+      "buildId": "f1925755cb481b9c3a609996333d26bf47da5302",
+      "imageSizeBytes": 347958996,
+      "platform": "linux/amd64",
+      "tagsMatch": true,
+      "actualVersionLabelMatched": true,
+      "actualRevisionLabelMatched": true
+    },
+    {
+      "key": "web-no-ssr",
+      "image": "registry.cn-shanghai.aliyuncs.com/comfy-ai/one-ai",
+      "versionTag": "3.28.2.20261011.4-no-ssr",
+      "floatingTag": "latest-no-ssr",
+      "digest": "sha256:3f2401b3b9b85434d1831de35c5d88aa3eed25a87b885298d556f762ac500123",
+      "configDigest": "sha256:e0c19f4260130b8e8bc52a0b2a53b8eb00676f9cf021ec43222866df5a765d7c",
+      "buildId": "f1925755cb481b9c3a609996333d26bf47da5302",
+      "imageSizeBytes": 312702485,
+      "platform": "linux/amd64",
+      "tagsMatch": true,
+      "actualVersionLabelMatched": true,
+      "actualRevisionLabelMatched": true
+    }
+  ],
+  "fixEvidence": {
+    "backend": {
+      "sourceSha": "607c5ee243936bba394579c7bc94ca0b2f62cda6",
+      "compiledArtifactSha256": "8ec7ce09386cf5cfe654644b72b948f05c12c839c71c13003364b200cb4da925",
+      "compiledArtifactMatchesBuild": true,
+      "saveAttemptIdPresent": true,
+      "atomicSaveReceiptPresent": true,
+      "modelOrServerStarted": false,
+      "verifiedAt": "2026-10-11T09:32:18.825311+00:00",
+      "imageDigest": "sha256:2077104a3d9f1cba68eb31911bb00a26d2c154eda2c897fb031c162559379e11",
+      "image": "registry.cn-shanghai.aliyuncs.com/comfy-ai/comfy-server@sha256:2077104a3d9f1cba68eb31911bb00a26d2c154eda2c897fb031c162559379e11"
+    },
+    "webSsr": {
+      "metadata": {
+        "version": "3.0.4",
+        "buildTime": "2026-10-11T09:38:26.796Z",
+        "commitHash": "f1925755"
+      },
+      "nuxtBuild": {
+        "id": "d7fcee8d-a6ac-4cb6-a494-2fd07a1ffc5a",
+        "timestamp": 1791711088163
+      },
+      "saveAttemptArtifacts": [
+        {
+          "path": "_nuxt/RrADm_1v.js",
+          "sha256": "2de9b3141067664186de4cecf517e6dcefdb197056f4b04dfbcef04ee53e9c6b",
+          "bytes": 174475
+        }
+      ],
+      "compiledSaveAttemptPresent": true,
+      "compiledRefreshConfirmationMessagePresent": true,
+      "sourceSha": "f1925755cb481b9c3a609996333d26bf47da5302",
+      "imageArtifactsMatchBuild": true,
+      "verifiedAt": "2026-10-11T09:40:27.646971+00:00",
+      "imageDigest": "sha256:279da715ec67c2017c06ca31c8f7e172b703b99c5378404d24198af919c460dc",
+      "image": "registry.cn-shanghai.aliyuncs.com/comfy-ai/one-ai@sha256:279da715ec67c2017c06ca31c8f7e172b703b99c5378404d24198af919c460dc"
+    },
+    "webNoSsr": {
+      "metadata": {
+        "version": "3.0.4",
+        "buildTime": "2026-10-11T09:43:52.060Z",
+        "commitHash": "f1925755"
+      },
+      "nuxtBuild": {
+        "id": "1e7bb7c2-9040-452f-b478-69e059df86db",
+        "timestamp": 1791711702559
+      },
+      "saveAttemptArtifacts": [
+        {
+          "path": "_nuxt/De3ohASY.js",
+          "sha256": "2ab5046d392da52250484dee347997dfa187f965ba343c4868c98eef30830078",
+          "bytes": 174475
+        }
+      ],
+      "compiledSaveAttemptPresent": true,
+      "compiledRefreshConfirmationMessagePresent": true,
+      "sourceSha": "f1925755cb481b9c3a609996333d26bf47da5302",
+      "imageArtifactsMatchBuild": true,
+      "verifiedAt": "2026-10-11T09:43:57.453562+00:00",
+      "imageDigest": "sha256:3f2401b3b9b85434d1831de35c5d88aa3eed25a87b885298d556f762ac500123",
+      "image": "registry.cn-shanghai.aliyuncs.com/comfy-ai/one-ai@sha256:3f2401b3b9b85434d1831de35c5d88aa3eed25a87b885298d556f762ac500123"
+    }
+  },
+  "publisherChecks": {
+    "backendTestsPassed": 18,
+    "frontendTestsPassed": 45,
+    "frontendTestsSkipped": 0,
+    "backendPublishGuardsPassed": 5,
+    "frontendPublishGuardsPassed": 3,
+    "frontendFixLintPassed": true,
+    "ssrStaticObjectsUploadedAndVerified": 2890,
+    "imageUploadAndRegistryVerificationPassed": true,
+    "commands": {
+      "backend-targeted-tests": {
+        "passed": true,
+        "durationSeconds": 3.35
+      },
+      "web-targeted-tests": {
+        "passed": true,
+        "durationSeconds": 0.69
+      },
+      "web-fix-lint": {
+        "passed": true,
+        "durationSeconds": 1.55
+      },
+      "backend-release-guards": {
+        "passed": true,
+        "durationSeconds": 0.22
+      },
+      "web-release-guards": {
+        "passed": true,
+        "durationSeconds": 0.25
+      },
+      "backend-deploy": {
+        "passed": true,
+        "durationSeconds": 35.03
+      },
+      "web-deploy-resume": {
+        "passed": true,
+        "durationSeconds": 241.63
+      }
+    }
+  },
+  "unchangedComponents": [
+    "ws-gateway",
+    "runtime-worker"
+  ],
+  "customerAcceptance": "Customer second update and refresh confirmation browser acceptance are owned by the MacBook parent conversation; this record is publisher source/artifact evidence, not customer acceptance."
+}