If you go to "Star Explorers > Properties > Betas" you will find a new "Low Memory" beta available.
If you are not experiencing trouble running Star Explorers, don't worry about this. However, some folks, especially those with 32bit Windows computers, or lower RAM, might benefit from playing Star Explerers in Low Memory Mode.
Essentially, I simply reduced the image quality for most of the game's textures, allowing it to require less memory resources while running. As with any new build, this one may provide some of its own unique bugs and challenges, so consider this whole thing a kind of experiment for now.
Anyway, I do hope this helps people enjoy the game without some of the memory loss issues shome have experienced.
Obviously, the drawback for Low Memory Mode is that the image texture quality will be reduced. But that's better than not being able to play, right?