you do not need to open all of the reports and republish. tableau server is what we call forward compatible. meaning any workbooks created in desktop versions lower than the server version will work. if you are upgrading to v10.1, then any workbooks 10.1 or lower will render correctly. any workbooks published to tableau server after the upgrade will automatically be upgraded to the server version.
does this make sense?
It makes sense,
thank you very much!
Chris - What about license keys? Still one can able to use existing 9.x keys to install and configure 10.x?
as long as you are up to date on your maintenance you can us the license keys for as many upgrades as you like.