String now serves as 'rope' rather than generating mobs (too easy to get more!) and works like fishing rod, except that with string you can yank down too. End stone does not only place a (very dangerous) end portal fragment, it now uses the embed logic to place an end stone block beneath it as a sort of hint. Still mulling over how to make the void holes temporary and replace them, after a timer, with something like a dirt column—or perhaps the opposite, a bedrock column, that provides other issues for miners and can be considered a structural element that you could intentionally build with in advanced gameplay :) yeah!