Upgrade Wrangler v4+ for 'using' (#20797)

Author: GregBrimble

src/content/docs/workers/runtime-apis/rpc/lifecycle.mdx

@@ -47,13 +47,7 @@ function sendEmail(id, message) {
 
 ### How to use the `using` declaration in your Worker
 
-Because it has not yet landed in V8, the `using` keyword is not yet available directly in the Workers runtime. To use it in your code, you must use a prerelease version of the [Wrangler CLI](/workers/wrangler/) to run and deploy your Worker:
-
-```sh
-npx wrangler@using-keyword-experimental dev
-```
-
-This version of Wrangler will transpile `using` into direct calls to `Symbol.dispose()`, before running your code or deploying it to Cloudflare.
+[Wrangler](/workers/wrangler/) v4+ supports the `using` keyword natively. If you are on an earlier version of Wrangler, you can alternatively call dispose of resources manually.
 
 The following code: