Is it possible to still download the 5.6 LTS?
Right now, I have a 5.5 Tomcat install, and would like to upgrade to 5.8. I cannot seem to find a way to download the 5.6-tomcat files, but I recall someone told me I should go from LTS to LTS, or that an upgrade from 5.5 to 5.8 would not go smoothly unless I first upgraded to 5.6.
Did I misunderstand what the original advice was? Is it possible to just make the settings / changes that the upgrades say to do, without actually doing anything to the data, and then just install the 5.8 files?
Yes, you can find it here http://community.nuxeo.com/static/releases/nuxeo-5.6/
Upgrading from LTS to LTS is not mandatory. The only thing is that between two versions there may be change in nuxeo code that would break your own developments. If you go from 5.5 to 5.6 you'll have less possible change than between 5.5 et 5.8.
BTW Nuxeo 6.0 is announced for beginning of november. You should perhaps wait for that since there are a lot of new features !