diff --git a/.changepacks/changepack_log_turboProfileRelease20260830.json b/.changepacks/changepack_log_turboProfileRelease20260830.json
new file mode 100644
index 00000000..4992b724
--- /dev/null
+++ b/.changepacks/changepack_log_turboProfileRelease20260830.json
@@ -0,0 +1,17 @@
+{
+  "changes": {
+    "bindings/devup-ui-wasm/package.json": "Patch",
+    "packages/bun-plugin/package.json": "Patch",
+    "packages/components/package.json": "Patch",
+    "packages/eslint-plugin/package.json": "Patch",
+    "packages/next-plugin/package.json": "Patch",
+    "packages/plugin-utils/package.json": "Patch",
+    "packages/react/package.json": "Patch",
+    "packages/reset-css/package.json": "Patch",
+    "packages/rsbuild-plugin/package.json": "Patch",
+    "packages/vite-plugin/package.json": "Patch",
+    "packages/webpack-plugin/package.json": "Patch"
+  },
+  "note": "Improve Turbopack build performance with lite WASM prewarming, align React 19 behavior, and update package toolchains",
+  "date": "2026-08-29T16:26:58.980Z"
+}
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 6da90695..25287578 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -229,7 +229,12 @@ jobs:
       - name: Format Rollback
         run: |
           rm -rf .rustfmt.toml
-          cargo fmt
+          # Formatting with the temporary coverage config and then with the
+          # default config is not a reversible round trip. Restore the exact
+          # checked-in sources so changepacks can safely switch commits.
+          git restore --source=HEAD --staged --worktree -- .
+          cargo fmt --all -- --check
+          git diff --exit-code
       - name: Build Landing
         run: |
           bun run --filter @devup-ui/components build-storybook
@@ -301,6 +306,8 @@ jobs:
       # Bun packs each workspace so dependency ranges are materialized, then
       # npm publishes that tarball with OIDC (Bun cannot do OIDC itself:
       # oven-sh/bun#22423).
+      - name: Verify clean publish checkout
+        run: git diff --exit-code
       - uses: changepacks/action@main
         id: changepacks
         with: