Add v4 RC changelog entry

Author: penalosa

src/content/changelog/workers/2025-02-27-wrangler-v4-rc.mdx

@@ -0,0 +1,54 @@
+---
+title: Introducing Wrangler v4's release candidate
+description: You can now try out the v4 RC for Wrangler by installing `[email protected]`
+products:
+  - workers
+date: 2025-02-27T11:00:00Z
+---
+
+import { PackageManagers } from "~/components";
+
+TLDR: Try out the Wrangler v4 RC by installing via your favourite package manager:
+
+<PackageManagers pkg="wrangler@v4-rc" />
+
+Wrangler v3 was released in May 2023, and since then has seen amazing growth and usage—from just \~250,000 downloads a week back then to 1M+ now. It's time for the next chapter in Wrangler's journey: v4. This release will bring new features and unlock new possibilities for the developer platform, but for the vast majority of users you _won't need to make any changes to upgrade_. It'll be as simple as upgrading Wrangler.
+
+We're working on a more detailed migration guide, but here's a brief list of the changes to expect:
+
+#### Changes
+
+- **Upgraded `esbuild` version**
+  This has been a highly-requested feature for a long time, and will allow you to use more modern JavaScript features in your Workers, including import attributes and `using` statements
+
+- **`--local` by default for all commands**
+  All commands that access resources (e.g. `wrangler kv`, `wrangler r2`, `wrangler d1`) will now access local datastores by default
+
+- **Updated Node.js support policy**
+  Wrangler will now support the active, maintenance, and current versions of Node.js (currently v18+)
+
+- **Deprecated features removed**
+  All deprecated features have been removed from Wrangler, including
+  - Arguments:
+    - `wrangler dev/deploy --legacy-assets`
+    - `wrangler dev/deploy --format`
+  - Commands:
+    - `wrangler version`
+    - `wrangler publish`
+    - `wrangler generate`
+    - `wrangler config`
+    - `wrangler preview`
+    - `wrangler route`
+    - `wrangler subdomain`
+  - APIs
+    - `getBindingsProxy()`
+  - Config file properties
+    - `type`
+    - `webpack_config`
+    - `miniflare`
+    - `build.upload`
+    - `zone_id`
+    - `usage_model`
+    - `experimental_services`
+    - `kv-namespaces`
+    - `legacy_assets`