Google rolled out Webmaster Tools’new user interface with a new feature “Change of Address” that lets you notify Google when you are moving from one domain to another, enabling us to update our index faster and hopefully creating a smoother transition for your users.

Now you can forward messages from Webmaster Tools Message Center to your personal email to any email associated with your Google Account. To associate another email address with your Google Account, simply click on the "My Account" link at the top of the page and verify the new email address.

• Google and other search engines, Bing, Yahoo! part of Sitemaps.org now support up to 50,000 child Sitemaps for Sitemap index files (instead of 1,000), this allows large sites to submit a maximum of 2.5 billion URLs with a single Sitemap Index URL.
• Webmaster Tools now shows all Sitemaps submitted for your verified website. Or if you’re submitting via HTTP ping or through your robots.txt file. 
• indexed URL count is now even more precise.
• updated XSD schemas allow Sitemap extensions to create better Sitemaps by verifying more features.