The eighth Preview release of 4.11 is now available to download from the launcher. In this preview we've introduced new features and fixes such as updating level-of-detail (LOD) tools to include dithered crossfades and adding live animation recording from gameplay.
To download Preview 8, head to the Epic Games Launcher and select the "Library" tab. Simply hit the upgrade button if you already have a 4.11 Preview installed. If not click "Add Versions", and choose 4.11 Preview 8.
You can read up on the fixes included in this release through this forum post from Stephen Ellis. Also be sure to have a look at the known issues list to see what's still outstanding. Please remember these Preview builds are for testing only, and should not be used for the active development of your project.