A quick summary of the improvements:
1. We’ve added content, and made numerous changes to better serve the needs of template providers and handle the growth of end-users. For example, new Templates are now published to the new aootemplates Twitter account, make sure to follow it to stay up-to-date.
2. The look & feel has been updated to match the new AOO 4 aesthetic.
3. Search has been improved and it now provides the autocomplete functionality, see the example below: