One site, sucuri.com shows you current but did not yesterday. ismyblogworking.com shows version 2.3.4. The version is normally within the source code but not yours.
Looks like it don't have an editor option. Just Widgets, Menus, TAC, Header, and Background.
also made it look like an older version.
But if you are in the dashboard and there is a tab for updates
[edit - if there is no tab then it is not 3.4.2.] and it shows 3.4.2 then it likely is. But who did the update? And something is still wrong with the edit feature. Making changes in the code is never the way to go as any update will over write the changes.