Oracle Partitioning is one of the most commonly used option on top of Enterprise Edition - if not the most often used one, which is as you can guess always a discussion in our buildings ;-)
Over the years Oracle Partitioning matured significantly and became more powerful and flexible. But, as in real life, with power and flexibility comes always little things that are good to know (no, that's not an equivalent for complexity). So I am happy to see Connor McDonald just blogging about such a little detail around Interval Partitioning.
Check it out, it's worth it.