Today Google Webmaster team has roll out new Webmaster Tool Interface for all. From today onwards when you login to Google Webmasters you will see a new Webmaster Interface. Along with new Google Webmaster Interface new feature in Google Webmaster Tools named as Change of Address.

This feature will be extremely useful for those who are planning to move site to new domain. Until today their was no way to notify Google of changes domain name but with this new feature of Google Webmaster you can notify Google to update the index to reflect your new URL.

When you login to your Google Webmaster account you will find change of address option under site configuration navigation links.  Here are instructions displayed under Change of Address.

1. Setup a New website

2. Redirect all traffic from the old site with the help of 301 Permanent Redirect

3. Add your new site to Google Webmasters tools on same account of your Old domain

4.  Update New URL for your old domain

You need to periodically check Google webmasters see if your new site has been crawled and indexed. Change of Address feature will help Google to update index faster and have smooth transition for users.

Here is Google Webmaster Guidelines on How to Move Site to New Domain