Battlefield 4 beta served two purposes: It hyped up fans for the game's launch later this month by offering a small taste of what's to come in multiplayer and it gave EA crucial preliminary data for last-minute tweaks on the eve of release.
In a missive on the Battlefield blog, developer DICE has detailed some of the persistent issues from the beta: On PC, players encountered inconsistent frame rates, loading screen issues and spontaneously high CPU usage; on Xbox 360 and PS3, known problems included limited control schemes and empty servers populating throughout the server browser; and across all platforms, elevators were mysteriously catapulting players far off into the sky. While that last one sounds hilarious, it certainly wasn't intentional.
Some of the more granular changes to infantry and vehicles, for example, can be seen in the full patch notes over on the Battlefield blog. DICE assures all of the above issues, including more, are being worked on for Battlefield 4's launch on PC, Xbox 360 and PS3 on October 29. Xbox One and PS4 versions of Battlefield 4 will be available alongside those consoles' respective launches.