Thread:Project:Support desk/Upgrade 1.15.1 -- 1.15.4 and move to new server simultaneously?

I'm rebuilding a development support system from Fedora 10 with MediaWiki 1.15.1 to Fedora 14 with MediaWiki 1.15.4 (on new hardware) and need to migrate a MediaWiki instance in the process. Can I simply export a 1.15.1 Wiki and import it on version 1.15.4? Or, do I need to do the migration between identical versions, I.e. install 1.15.1 on the new server, then migrate, and then upgrade the new server to 1.15.4?