We are looking to upgrade from version 9.0 Build 9035 to the latest release.  What does our upgrade path look like?

So far I was able to find this path .. upgrade to 9049, then 9100, then 9121, then 9200, and finally 9240. Do we have to install all the intermediate step, 9049, 9100, 9121, 9200 and finally 9240?  Or is there a quicker way to get to the latest (9240)?

Thanks,

John Ames