Yeah, when it comes to game breaking bugs, I try to update as soon as possible. Within a day, A few hours if it's viable. It depends how soon issues are brought to my attention, and if I'm busy with something else at the time.
Electronics is a good example of what I was aiming for here actually. Each tier expands upon the previous one. By the time you're trying to get tougher to craft metals like Aluminium and Titanium, you should already be crafting some of the materials you need already.
There are a few examples where you need to create a whole new chain, but not many.