A new beta has just been published, with some fixes and improvements based on feedback from the last beta.

There's a prototype of a new feature in this beta called Mountain Terrain, which colours terrain dynamically depending upon its threat to you. Terrain higher than 500 feet below you is red, for example. This is quite a good safety feature for mountain flying as it makes it easy to find a safe route away if the cloudbase comes down. To activate the feature in flight (or when simulating), open the Map Layers screen and select Switch to Mountain Terrain. This feature may not actually make it into the forthcoming release because it's quite immature, but testing is still appreciated.