In 2006, Webmaster Tool began as a way for webmasters to submit Sitemaps.
The important aspects in this redesign are:
1. Faster loading.
2. Easier navigation.
3. More search query list, to which our site appeared in search engines.
4. Display thinks in the form of table. Looks very clean and readable.
Over all the redesign is impressive. And there is no major feature added or removed from the previous version.