Create 2025-06-19-increased-blob-size-limits-in-Workers-Analytics.mdx (cloudflare#23129)

Author: pulkitacloudflare

src/content/changelog/workers/2025-06-20-increased-blob-size-limits-in-Workers-Analytics.mdx

@@ -0,0 +1,37 @@
+---
+title: Increased blob size limits in Workers Analytics Engine
+description: We’ve increased the total allowed size of blob fields per request from 5 KB to 16 KB in the Workers Analytics Engine.
+products:
+  - workers
+date: 2025-06-20T11:29:00Z
+---
+import { TypeScriptExample } from "~/components";
+
+We’ve increased the total allowed size of [`blob`](/analytics/analytics-engine/get-started/#2-write-data-points-from-your-worker) fields on data points written to [Workers Analytics Engine](/analytics/analytics-engine/) from **5 KB to 16 KB**.
+
+This change gives you more flexibility when logging rich observability data — such as base64-encoded payloads, AI inference traces, or custom metadata — without hitting request size limits.
+
+You can find full details on limits for queries, filters, payloads, and more [here in the Workers Analytics Engine limits documentation](/analytics/analytics-engine/limits/).
+
+<TypeScriptExample>
+
+```ts title="worker.ts"
+export default {
+	async fetch(request, env) {
+		env.analyticsDataset.writeDataPoint({
+			// The sum of all of the blob's sizes can now be 16 KB
+			blobs: [
+				// The URL of the request to the Worker
+				request.url,
+				// Some metadata about your application you'd like to store
+				JSON.stringify(metadata),
+				// The version of your Worker this datapoint was collected from
+				env.versionMetadata.tag,
+			],
+			indexes: ["sample-index"],
+		});
+	}
+};
+```
+
+</TypeScriptExample>