Before it wasn't always super clear what was going on with the cloud assets in your projects, when they were being updated, how you could avoid that, and why some things would just sometimes end up breaking after a while in big projects.
Now, they'll stick to a version unless you go and manually update it, and everything references the specific version you're using too.
If you abandon a project for months on end, you should now be able to come back and see everything just like it was. No error models from broken paths, and if the asset creator since decided to change the colour of your red fire extinguishers to be a tasteful lime green, that can't wreck the look of your game (unless you want that).
We've got more improvements to this experience in the works, but the hope is that this all being more explicit makes this nicer to work with, and gives you more of that control over what's in your game.