The only real significant change is, I believe, in the cover. Hitherto the covers were a generic pattern with the Watchtower logo of a watchtower on which was surmounted the contents for that issue. There was a certain sense of foreboding about this dark design.
Now the covers are more user friendly with line drawings of people, all with forgettable faces and all enjoying the convivial association of jeeehover's people.
The inclusion of an "archive" section is quaint, but later issues will no doubt clarify.