BFF v4 is no longer in preview

Author: wcabus

src/content/docs/bff/index.mdx

@@ -43,7 +43,7 @@ The source code for the BFF framework can be found on GitHub. Builds are distrib
 
 ## Getting Started
 
-Currently, the most recent version is 4 (preview 2). If you're upgrading from a previous version, please check our [upgrade guides](/bff/upgrading). 
+Currently, the most recent version is v4. If you're upgrading from a previous version, please check our [upgrade guides](/bff/upgrading).
 
 If you're starting a new BFF project, consider the following startup guides:
 * [Single frontend BFF](/bff/getting-started/single-frontend.mdx)