I am no expert, but I just added new sites to my “Available Software Sites”
(help -> install new software -> Available Software Sites)
http://download.eclipse.org/releases/juno
http://download.eclipse.org/tools/cdt/releases/juno
and updated (help -> install updates).
After the update
http://download.eclipse.org/eclipse/updates/4.2 had been added
http://download.eclipse.org/eclipse/updates/3.7 had been disabled
http://download.eclipse.org/tools/cdt/releases/indigo had been disabled
maybe other changes that I didn’t notice.
Everything seems to work as expected
– project list remains
– perspectives remain
– the only thing that wasn’t preserved seemed to be the editor tabs that were open in the workspace, but that is small loss.
So hopefully that was the right way to do it
– unless someone wants to tell me differently.
Alan