diff --git a/docs/src/content/docs/guides/performance-resources.md b/docs/src/content/docs/guides/performance-resources.md
index b601d6d..5c78345 100644
--- a/docs/src/content/docs/guides/performance-resources.md
+++ b/docs/src/content/docs/guides/performance-resources.md
@@ -961,6 +961,50 @@ bun run --filter @sheetwrite/bench bench:formula
 <p class="size-history__intro">Registry measurements for every published release. Each delta is measured against the release immediately before it.</p>
 <details class="size-history__release" data-current="true" open>
 <summary class="size-history__release-head">
+<span class="size-history__version-step"><span>v0.3.1</span><svg class="size-history__arrow" viewBox="0 0 16 16" aria-hidden="true"><path d="M3 8h9M9 4.5 12.5 8 9 11.5"/></svg><strong>v0.4.0</strong></span>
+<time datetime="2026-08-14T09:21:51.130Z">Measured Aug 14, 2026</time>
+<svg class="size-history__fold" viewBox="0 0 16 16" aria-hidden="true"><path d="m4 6 4 4 4-4"/></svg>
+</summary>
+<div class="size-history__table-wrap">
+<table class="size-history__table">
+<thead><tr><th scope="col">Package</th><th scope="col">Tarball</th><th scope="col">Installed</th></tr></thead>
+<tbody>
+<tr>
+<th scope="row"><code>@sheetwrite/wasm</code></th>
+<td>287.9 KiB<small data-direction="increase"><span>+390 B</span><span>+0.1%</span></small></td>
+<td>792.8 KiB<small data-direction="decrease"><span>-2.8 KiB</span><span>-0.3%</span></small></td>
+</tr>
+<tr>
+<th scope="row"><code>@sheetwrite/core</code></th>
+<td>302.1 KiB<small data-direction="decrease"><span>-215.3 KiB</span><span>-41.6%</span></small></td>
+<td>1.42 MiB<small data-direction="decrease"><span>-1.29 MiB</span><span>-47.6%</span></small></td>
+</tr>
+<tr>
+<th scope="row"><code>@sheetwrite/xlsx</code></th>
+<td>85.4 KiB<small data-direction="decrease"><span>-60 B</span><span>-0.1%</span></small></td>
+<td>429.2 KiB<small data-direction="decrease"><span>-356 B</span><span>-0.1%</span></small></td>
+</tr>
+<tr>
+<th scope="row"><code>@sheetwrite/react</code></th>
+<td>9.2 KiB<small data-direction="flat"><span>0 B</span><span>+0.0%</span></small></td>
+<td>31.9 KiB<small data-direction="flat"><span>0 B</span><span>+0.0%</span></small></td>
+</tr>
+<tr>
+<th scope="row"><code>@sheetwrite/vue</code></th>
+<td>10.1 KiB<small data-direction="decrease"><span>-2 B</span><span>-0.0%</span></small></td>
+<td>35.7 KiB<small data-direction="flat"><span>0 B</span><span>+0.0%</span></small></td>
+</tr>
+<tr>
+<th scope="row"><code>@sheetwrite/svelte</code></th>
+<td>6.2 KiB<small data-direction="flat"><span>0 B</span><span>+0.0%</span></small></td>
+<td>18.5 KiB<small data-direction="flat"><span>0 B</span><span>+0.0%</span></small></td>
+</tr>
+</tbody>
+</table>
+</div>
+</details>
+<details class="size-history__release">
+<summary class="size-history__release-head">
 <span class="size-history__version-step"><span>v0.3.0</span><svg class="size-history__arrow" viewBox="0 0 16 16" aria-hidden="true"><path d="M3 8h9M9 4.5 12.5 8 9 11.5"/></svg><strong>v0.3.1</strong></span>
 <time datetime="2026-07-23T17:11:35.485Z">Measured Jul 23, 2026</time>
 <svg class="size-history__fold" viewBox="0 0 16 16" aria-hidden="true"><path d="m4 6 4 4 4-4"/></svg>
diff --git a/scripts/size-history.json b/scripts/size-history.json
index cc17e1a..38c4048 100644
--- a/scripts/size-history.json
+++ b/scripts/size-history.json
@@ -316,6 +316,85 @@
           "unit": "count"
         }
       }
+    },
+    {
+      "version": "0.4.0",
+      "capturedAt": "2026-08-14T09:21:51.130Z",
+      "source": "npm registry published artifacts",
+      "metrics": {
+        "package.@sheetwrite/wasm.tarballBytes": {
+          "actual": 294845,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/wasm.unpackedBytes": {
+          "actual": 811794,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/wasm.fileCount": {
+          "actual": 12,
+          "unit": "count"
+        },
+        "package.@sheetwrite/core.tarballBytes": {
+          "actual": 309399,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/core.unpackedBytes": {
+          "actual": 1491414,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/core.fileCount": {
+          "actual": 174,
+          "unit": "count"
+        },
+        "package.@sheetwrite/xlsx.tarballBytes": {
+          "actual": 87463,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/xlsx.unpackedBytes": {
+          "actual": 439515,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/xlsx.fileCount": {
+          "actual": 59,
+          "unit": "count"
+        },
+        "package.@sheetwrite/react.tarballBytes": {
+          "actual": 9398,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/react.unpackedBytes": {
+          "actual": 32679,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/react.fileCount": {
+          "actual": 8,
+          "unit": "count"
+        },
+        "package.@sheetwrite/vue.tarballBytes": {
+          "actual": 10352,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/vue.unpackedBytes": {
+          "actual": 36578,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/vue.fileCount": {
+          "actual": 8,
+          "unit": "count"
+        },
+        "package.@sheetwrite/svelte.tarballBytes": {
+          "actual": 6354,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/svelte.unpackedBytes": {
+          "actual": 18919,
+          "unit": "bytes"
+        },
+        "package.@sheetwrite/svelte.fileCount": {
+          "actual": 10,
+          "unit": "count"
+        }
+      }
     }
   ]
 }