diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 6907d97..5913687 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -79,6 +79,7 @@ jobs:
           BAILIAN_OSS_REGION: ${{ secrets.BAILIAN_OSS_REGION }}
           BAILIAN_OSS_ENDPOINT: ${{ secrets.BAILIAN_OSS_ENDPOINT }}
           BAILIAN_RELEASE_PREFIX: ${{ secrets.BAILIAN_RELEASE_PREFIX }}
+          BAILIAN_STATIC_PREFIX: ${{ secrets.BAILIAN_STATIC_PREFIX }}
         run: node tools/release/publish-stable.mjs ${{ inputs.package == 'knowledge-studio-cli' && '--knowledge' || '' }}
 
   publish-channel:
@@ -135,4 +136,5 @@ jobs:
           BAILIAN_OSS_REGION: ${{ secrets.BAILIAN_OSS_REGION }}
           BAILIAN_OSS_ENDPOINT: ${{ secrets.BAILIAN_OSS_ENDPOINT }}
           BAILIAN_RELEASE_PREFIX: ${{ secrets.BAILIAN_RELEASE_PREFIX }}
+          BAILIAN_STATIC_PREFIX: ${{ secrets.BAILIAN_STATIC_PREFIX }}
         run: node tools/release/publish-channel.mjs ${{ inputs.package == 'knowledge-studio-cli' && '--knowledge' || '' }} --channel "${{ inputs.channel }}"
diff --git a/packages/core/src/install/cdn.ts b/packages/core/src/install/cdn.ts
index d9996f4..8460a1e 100644
--- a/packages/core/src/install/cdn.ts
+++ b/packages/core/src/install/cdn.ts
@@ -5,7 +5,7 @@
  *
  * Layout under the base:
  *   v<version>/<asset>.zip —— immutable per-version binaries + SHA256SUMS
- *   manifest.json          —— stable pointer { latest, releasedAt, assets }
+ *   manifest.json          —— stable pointer; same rolling-manifest shape as latest.json
  *   latest.json            —— stable rolling manifest (os-arch keyed, sha256)
  *   <channel>.json         —— per-channel rolling manifests (beta versions)
  *
diff --git a/tools/release/lib/binary-release.mjs b/tools/release/lib/binary-release.mjs
index 0b1d37a..7143db8 100644
--- a/tools/release/lib/binary-release.mjs
+++ b/tools/release/lib/binary-release.mjs
@@ -11,7 +11,8 @@
  *
  * Re-runs are idempotent via `gh release upload --clobber` (see gh-release.mjs).
  * After the GitHub upload the same assets are pushed straight to OSS from the
- * runner, HEAD-reconciled, and (stable only) release/manifest.json is updated —
+ * runner, HEAD-reconciled, and (stable only) release/manifest.json + latest.json
+ * are rewritten with the SAME rolling-manifest body as channel `<channel>.json` —
  * all in-process, no external FC (see oss-direct-upload.mjs).
  *
  * Called by publish-stable.mjs / publish-channel.mjs.
@@ -20,14 +21,18 @@
  *   node tools/release/lib/binary-release.mjs --mode channel --channel beta --dry-run
  */
 import { existsSync, readdirSync, readFileSync } from "node:fs";
-import { basename, join, resolve } from "node:path";
+import { join, resolve } from "node:path";
 import { fileURLToPath } from "node:url";
 import { parseArgs as parseCliArgs } from "node:util";
 import { ROOT, readPackageJson, PACKAGES } from "./packages.mjs";
 import { buildBinaryArtifacts, matrixAssetNames } from "./binary-build.mjs";
 import { channelManifestFileName, normalizeModeChannel } from "./binary-options.mjs";
 import { ensureGh, GITHUB_REPOSITORY, upsertRelease } from "./gh-release.mjs";
-import { maintainReleaseManifest, mirrorReleaseAssetsToOss } from "./oss-direct-upload.mjs";
+import {
+  maintainReleaseManifest,
+  mirrorReleaseAssetsToOss,
+  syncStaticFilesToOss,
+} from "./oss-direct-upload.mjs";
 
 const DEFAULT_DIR = join(ROOT, "dist-bin");
 
@@ -179,11 +184,14 @@ export async function releaseBinaryArtifacts(rawOptions = {}) {
     process.stdout.write(`[dry-run] ${dir} missing; planning expected assets\n`);
     planDryRunWithoutArtifacts({ version, mode, channel });
     const plans = ossMirrorPlans({ dir, version, mode, channel, files: null });
+    await syncStaticFilesToOss({
+      filePaths: [join(ROOT, "CHANGELOG.md"), join(ROOT, "CHANGELOG.zh.md")],
+      dryRun: true,
+    });
     await mirrorReleaseAssetsToOss({ plans, dryRun: true });
     if (mode === "stable") {
       await maintainReleaseManifest({
         tag: `v${version}`,
-        assetNames: plans[0].paths.map((path) => basename(path)),
         channelJsonPath: null,
         dryRun: true,
       });
@@ -226,6 +234,11 @@ export async function releaseBinaryArtifacts(rawOptions = {}) {
     uploadChannel({ dir, version, channel, files, dryRun });
   }
 
+  // Sync changelogs (and other static files) to OSS before the binary mirror.
+  await syncStaticFilesToOss({
+    filePaths: [join(ROOT, "CHANGELOG.md"), join(ROOT, "CHANGELOG.zh.md")],
+    dryRun,
+  });
   // Push the exact Release assets straight to OSS from the runner, then
   // HEAD-reconcile. Stable releases additionally maintain release/manifest.json
   // (newer-version guard). Throws on failure — CI is the only OSS writer.
@@ -234,7 +247,6 @@ export async function releaseBinaryArtifacts(rawOptions = {}) {
   if (mode === "stable" && !mirror.skipped) {
     await maintainReleaseManifest({
       tag: `v${version}`,
-      assetNames: plans[0].paths.map((path) => basename(path)),
       channelJsonPath: join(dir, rollingManifest),
       dryRun,
     });
diff --git a/tools/release/lib/oss-direct-upload.mjs b/tools/release/lib/oss-direct-upload.mjs
index a821a86..ae142d0 100644
--- a/tools/release/lib/oss-direct-upload.mjs
+++ b/tools/release/lib/oss-direct-upload.mjs
@@ -8,9 +8,11 @@
  *     channel manifests (`<channel>.json`) go to the prefix root (empty tag).
  *   - After upload, every object is HEAD-verified against the local byte size
  *     (reconciliation — the runner has the ground-truth artifacts on disk).
- *   - Stable only: when the tag is a NEWER version than manifest.latest
+ *   - Stable only: when the tag is a NEWER version than the current manifest
  *     (compareVersions), rewrite `<prefix>/manifest.json` and the rolling
- *     `<prefix>/latest.json`. Channel/prerelease never touches either.
+ *     `<prefix>/latest.json` — both carry the SAME rolling-manifest body
+ *     written by binary-build.mjs, so manifest.json shares the channel
+ *     `<channel>.json` shape. Channel/prerelease never touches either.
  *
  * Zero-dependency: OSS V1 header signature (HMAC-SHA1) over plain fetch.
  *
@@ -26,6 +28,8 @@
  *                                      oss:GetObject on the release prefix
  *   BAILIAN_OSS_BUCKET / BAILIAN_OSS_REGION / BAILIAN_RELEASE_PREFIX
  *                                   —— required once the channel is enabled
+ *   BAILIAN_STATIC_PREFIX           —— prefix for static files (changelogs, etc.);
+ *                                      same bucket/creds, separate namespace
  *   BAILIAN_OSS_ENDPOINT            —— optional request endpoint override;
  *                                      public manifest URLs always use the
  *                                      region endpoint
@@ -69,6 +73,7 @@ function ossHost(cfg) {
 }
 
 function contentTypeFor(name) {
+  if (name.endsWith(".md")) return "text/markdown; charset=utf-8";
   if (name.endsWith(".zip")) return "application/zip";
   if (name.endsWith(".json")) return "application/json";
   return "application/octet-stream";
@@ -98,36 +103,6 @@ export function compareVersions(a, b) {
   return 0;
 }
 
-/** Format now (or a given time) as an Asia/Shanghai +08:00 string. */
-function toBeijing(input) {
-  const d = input ? new Date(input) : new Date();
-  const parts = new Intl.DateTimeFormat("en-US", {
-    timeZone: "Asia/Shanghai",
-    year: "numeric",
-    month: "2-digit",
-    day: "2-digit",
-    hour: "2-digit",
-    minute: "2-digit",
-    second: "2-digit",
-    hour12: false,
-  }).formatToParts(d);
-  const g = (t) => parts.find((p) => p.type === t)?.value ?? "00";
-  return `${g("year")}-${g("month")}-${g("day")}T${g("hour")}:${g("minute")}:${g("second")}+08:00`;
-}
-
-/**
- * Build the manifest.json contents. Public URLs always use the durable region
- * endpoint (never the acceleration endpoint used for uploads).
- */
-function buildManifest(tag, releasedAt, assetNames, cfg) {
-  const base = `https://${cfg.bucket}.${cfg.region}.aliyuncs.com/${cfg.prefix}/${tag}`;
-  const assets = {};
-  for (const name of [...assetNames].sort((a, b) => (a < b ? -1 : a > b ? 1 : 0))) {
-    assets[name] = `${base}/${encodeURIComponent(name)}`;
-  }
-  return { latest: tag, releasedAt, assets };
-}
-
 /**
  * Signed OSS request (V1 header signature). Keys here are [A-Za-z0-9._/-] only,
  * so no URL encoding is needed and the signed resource matches the request path.
@@ -204,6 +179,64 @@ async function getObjectJson(key, creds, cfg) {
   }
 }
 
+/**
+ * Run async task factories with a bounded concurrency pool.
+ * Returns results in the same order as the input tasks array.
+ * (Same contract as packages/commands/src/commands/skill/shared.ts)
+ *
+ * @template T
+ * @param {Array<() => Promise<T>>} tasks
+ * @param {number} limit
+ * @returns {Promise<T[]>}
+ */
+async function runWithConcurrency(tasks, limit) {
+  const results = Array.from({ length: tasks.length });
+  let nextIndex = 0;
+
+  async function worker() {
+    while (nextIndex < tasks.length) {
+      const currentIndex = nextIndex++;
+      results[currentIndex] = await tasks[currentIndex]();
+    }
+  }
+
+  const workers = Array.from({ length: Math.min(limit, tasks.length) }, () => worker());
+  await Promise.all(workers);
+  return results;
+}
+
+/**
+ * HEAD-reconcile: verify every uploaded object exists remotely with the same
+ * byte size as the local file. Runs HEAD requests concurrently.
+ *
+ * @param {Array<{ path: string, key: string }>} jobs
+ * @param {{ ak: string, sk: string }} creds
+ * @param {object} cfg
+ * @param {string} label  Context for error messages (e.g. "release", "static-files")
+ */
+async function reconcileUploads(jobs, creds, cfg, label) {
+  const results = await runWithConcurrency(
+    jobs.map((job) => async () => {
+      const remote = await headObjectSize(job.key, creds, cfg);
+      const local = statSync(job.path).size;
+      if (remote !== local) {
+        return {
+          ok: false,
+          key: job.key,
+          error: `OSS ${label} reconcile mismatch for ${job.key}: local ${local}B vs remote ${remote ?? "missing"}`,
+        };
+      }
+      return { ok: true, key: job.key };
+    }),
+    4,
+  );
+  const mismatches = results.filter((result) => !result.ok);
+  if (mismatches.length > 0) {
+    throw new Error(mismatches.map((item) => item.error).join("\n"));
+  }
+  process.stdout.write(`${label} reconcile ok: ${jobs.length}/${jobs.length} object(s) verified\n`);
+}
+
 /**
  * Upload release assets to OSS under `<prefix>/<tag>/<basename>`, then
  * HEAD-reconcile every object against the local byte size.
@@ -246,70 +279,59 @@ export async function mirrorReleaseAssetsToOss({ plans, dryRun = false }) {
     return { uploaded: 0, skipped: false };
   }
 
-  // Bounded worker pool; collect failures, then throw once at the end.
-  const failed = [];
-  let cursor = 0;
-  const worker = async () => {
-    while (true) {
-      const index = cursor++;
-      if (index >= jobs.length) return;
-      const { path, key } = jobs[index];
+  const results = await runWithConcurrency(
+    jobs.map((job) => async () => {
       const startedAt = Date.now();
       try {
-        const body = readFileSync(path);
-        await putWithRetry({ creds, cfg, key, body, contentType: contentTypeFor(key) });
+        const body = readFileSync(job.path);
+        await putWithRetry({
+          creds,
+          cfg,
+          key: job.key,
+          body,
+          contentType: contentTypeFor(job.key),
+        });
         process.stdout.write(
-          `  [oss] ok ${key} (${(body.length / 1024 / 1024).toFixed(1)}MB, ${Date.now() - startedAt}ms)\n`,
+          `  [oss] ok ${job.key} (${(body.length / 1024 / 1024).toFixed(1)}MB, ${Date.now() - startedAt}ms)\n`,
         );
-      } catch (err) {
-        failed.push({ key, error: err.message });
-        process.stdout.write(`  [oss] FAIL ${key}: ${err.message}\n`);
+        return { ok: true, key: job.key };
+      } catch (error) {
+        process.stdout.write(`  [oss] FAIL ${job.key}: ${error.message}\n`);
+        return { ok: false, key: job.key, error: error.message };
       }
-    }
-  };
-  await Promise.all(Array.from({ length: Math.min(4, jobs.length) }, () => worker()));
+    }),
+    4,
+  );
 
+  const failed = results.filter((result) => !result.ok);
   if (failed.length > 0) {
     throw new Error(
       `OSS upload failed for ${failed.length}/${jobs.length} object(s): ${failed
-        .map((f) => f.key)
+        .map((item) => item.key)
         .join(", ")}`,
     );
   }
 
-  // Reconcile: every uploaded object must exist remotely with the local byte size.
-  for (const { path, key } of jobs) {
-    const remote = await headObjectSize(key, creds, cfg);
-    const local = statSync(path).size;
-    if (remote !== local) {
-      throw new Error(
-        `OSS reconcile mismatch for ${key}: local ${local}B vs remote ${remote ?? "missing"}`,
-      );
-    }
-  }
-  process.stdout.write(`reconcile ok: ${jobs.length}/${jobs.length} object(s) verified on OSS\n`);
+  await reconcileUploads(jobs, creds, cfg, "release");
   return { uploaded: jobs.length, skipped: false };
 }
 
 /**
  * Maintain the STABLE pointers at the prefix root: rewrite `manifest.json`
- * (and, when `channelJsonPath` is given, the rolling `latest.json`) when `tag`
- * is a newer version than the current `latest` (first write included).
+ * and the rolling `latest.json` when `tag` is a newer version than the
+ * current manifest (first write included). Both objects carry the SAME
+ * rolling-manifest body produced by binary-build.mjs (`channelJsonPath`):
+ * `{ name, channel, version, releasedAt, assets: { "<os>-<arch>": { file, sha256, inner } } }`
+ * — identical in shape to the channel `<channel>.json` manifests.
  *
  * @param {{
  *   tag: string,
- *   assetNames: string[],
  *   channelJsonPath?: string | null,
  *   dryRun?: boolean,
- * }} options
+ * }} options `channelJsonPath` is required outside dry-run.
  * @returns {Promise<{ updated: boolean, latest: string | null }>}
  */
-export async function maintainReleaseManifest({
-  tag,
-  assetNames,
-  channelJsonPath = null,
-  dryRun = false,
-}) {
+export async function maintainReleaseManifest({ tag, channelJsonPath = null, dryRun = false }) {
   const ctx = ossContext();
   if (!ctx) {
     process.stdout.write("[info] BAILIAN_OSS_AK/SK unset; skip manifest.json maintenance\n");
@@ -320,37 +342,144 @@ export async function maintainReleaseManifest({
 
   if (dryRun) {
     process.stdout.write(
-      `[dry-run] manifest: GET oss://${cfg.bucket}/${key} → rewrite manifest.json + latest.json when ${tag} > latest (assets: ${assetNames.length})\n`,
+      `[dry-run] manifest: GET oss://${cfg.bucket}/${key} → rewrite manifest.json + latest.json from ${channelJsonPath ?? "<rolling manifest>"} when ${tag} > latest\n`,
     );
     return { updated: false, latest: null };
   }
+  if (!channelJsonPath) {
+    throw new Error("maintainReleaseManifest requires channelJsonPath outside dry-run");
+  }
 
   const current = await getObjectJson(key, creds, cfg);
-  const currentLatest = typeof current?.latest === "string" ? current.latest : null;
+  // Rolling-manifest shape carries `version`; fall back to the legacy
+  // `{ latest }` pointer shape so the first migrated write still compares.
+  const currentLatest =
+    typeof current?.version === "string"
+      ? current.version
+      : typeof current?.latest === "string"
+        ? current.latest
+        : null;
   const newer = currentLatest == null || compareVersions(tag, currentLatest) > 0;
   if (!newer) {
     process.stdout.write(`manifest unchanged: latest=${currentLatest} is not older than ${tag}\n`);
     return { updated: false, latest: currentLatest };
   }
 
-  const manifest = buildManifest(tag, toBeijing(), assetNames, cfg);
+  const body = readFileSync(channelJsonPath);
+  await putObject({ creds, cfg, key, body, contentType: "application/json" });
+  process.stdout.write(`manifest.json → latest=${tag} (was ${currentLatest ?? "none"})\n`);
   await putObject({
     creds,
     cfg,
-    key,
-    body: Buffer.from(JSON.stringify(manifest, null, 2)),
+    key: `${cfg.prefix}/latest.json`,
+    body,
     contentType: "application/json",
   });
-  process.stdout.write(`manifest.json → latest=${tag} (was ${currentLatest ?? "none"})\n`);
-  if (channelJsonPath) {
-    await putObject({
-      creds,
-      cfg,
-      key: `${cfg.prefix}/latest.json`,
-      body: readFileSync(channelJsonPath),
-      contentType: "application/json",
-    });
-    process.stdout.write(`latest.json → ${tag}\n`);
-  }
+  process.stdout.write(`latest.json → ${tag}\n`);
   return { updated: true, latest: tag };
 }
+
+/**
+ * Resolve the OSS context for the static-files channel. Same bucket/creds as
+ * the release channel but uses BAILIAN_STATIC_PREFIX instead of
+ * BAILIAN_RELEASE_PREFIX. Returns null when credentials are absent (channel
+ * disabled); throws when creds exist but required config is incomplete.
+ */
+function staticOssContext() {
+  const ak = process.env.BAILIAN_OSS_AK?.trim();
+  const sk = process.env.BAILIAN_OSS_SK?.trim();
+  if (!ak || !sk) return null;
+  const cfg = {
+    bucket: process.env.BAILIAN_OSS_BUCKET?.trim() || "",
+    region: process.env.BAILIAN_OSS_REGION?.trim() || "",
+    endpoint: process.env.BAILIAN_OSS_ENDPOINT?.trim() || "",
+    prefix: process.env.BAILIAN_STATIC_PREFIX?.trim() || "",
+  };
+  const missing = [
+    ["BAILIAN_OSS_BUCKET", cfg.bucket],
+    ["BAILIAN_OSS_REGION", cfg.region],
+    ["BAILIAN_STATIC_PREFIX", cfg.prefix],
+  ]
+    .filter(([, value]) => !value)
+    .map(([name]) => name);
+  if (missing.length > 0) {
+    throw new Error(`OSS static-files channel misconfigured; missing env: ${missing.join(", ")}`);
+  }
+  return { creds: { ak, sk }, cfg };
+}
+
+/**
+ * Sync a list of local files to OSS under `<BAILIAN_STATIC_PREFIX>/<basename>`.
+ * Generic utility for any repo files that need to be mirrored to the static
+ * prefix (changelogs today; docs, banners, etc. in the future).
+ *
+ * Gating: BAILIAN_OSS_AK/SK unset → warn + no-op. BAILIAN_STATIC_PREFIX unset
+ * (with creds present) → throw (misconfiguration).
+ *
+ * @param {{
+ *   filePaths: string[],
+ *   dryRun?: boolean,
+ * }} options
+ * @returns {Promise<{ uploaded: number, skipped: boolean }>}
+ */
+export async function syncStaticFilesToOss({ filePaths, dryRun = false }) {
+  const ctx = staticOssContext();
+  if (!ctx) {
+    process.stdout.write("\n[warn] BAILIAN_OSS_AK/SK unset; skip static-files sync to OSS\n");
+    return { uploaded: 0, skipped: true };
+  }
+  const { creds, cfg } = ctx;
+
+  const jobs = filePaths.map((path) => ({
+    path,
+    key: `${cfg.prefix}/${basename(path)}`,
+  }));
+  if (jobs.length === 0) return { uploaded: 0, skipped: true };
+
+  process.stdout.write(
+    `\n==> OSS static-files sync: ${jobs.length} file(s) → ${cfg.bucket}/${cfg.prefix}/\n`,
+  );
+
+  if (dryRun) {
+    for (const job of jobs) {
+      process.stdout.write(`[dry-run] PUT oss://${cfg.bucket}/${job.key}\n`);
+    }
+    return { uploaded: 0, skipped: false };
+  }
+
+  const results = await runWithConcurrency(
+    jobs.map((job) => async () => {
+      const startedAt = Date.now();
+      try {
+        const body = readFileSync(job.path);
+        await putWithRetry({
+          creds,
+          cfg,
+          key: job.key,
+          body,
+          contentType: contentTypeFor(job.key),
+        });
+        process.stdout.write(
+          `  [oss] ok ${job.key} (${(body.length / 1024).toFixed(1)}KB, ${Date.now() - startedAt}ms)\n`,
+        );
+        return { ok: true, key: job.key };
+      } catch (error) {
+        process.stdout.write(`  [oss] FAIL ${job.key}: ${error.message}\n`);
+        return { ok: false, key: job.key, error: error.message };
+      }
+    }),
+    4,
+  );
+
+  const failed = results.filter((result) => !result.ok);
+  if (failed.length > 0) {
+    throw new Error(
+      `OSS static-files sync failed for ${failed.length}/${jobs.length} file(s): ${failed
+        .map((item) => item.key)
+        .join(", ")}`,
+    );
+  }
+
+  await reconcileUploads(jobs, creds, cfg, "static-files");
+  return { uploaded: jobs.length, skipped: false };
+}