As of recently Google has updated the way it works with Sitemaps at Webmasters Tools. We have bullet-pointed of the new features that are worth mentioning:
- prominent display of statistics from Web, Videos, Images and News
- option to test a Sitemap before submission
- new – aggregated – way of displaying errors for sitemaps
- now ‘Delete’ button means actually removing the Sitemap from Webmaster Tools. But a Sitemap can still be read by Google if it finds in robots.txt.
Source: Google Webmaster Central.