As I understand the Cumulative Update process, each CU contains all of the updates before it. However, I'm new to the CU concept - the last time I was responsible for server updates you had to install each update before moving on the next one. From what I've read, though, that's no longer necessary... which I find somewhat confusing.
For example, we have a SP2013 farm running SP1 at build 15.0.4569.1000. Would we jump straight to the April 2016 CU, or do we need to install additional updates between the two? I find it hard to believe that you can just skip over two years worth of updates like that, but if so, that's great.
Do cumulative updates in SharePoint 2013 negate the need for installing previous updates?