Why google is not visiting any website from past 10 days

[SubhaVaastu]

Hi, I observed why Google is not visiting www.SubhaVastu.com from past 10 days, later I checked thoroughly, not only for my site, google stopped visiting all websites from past 10/12 days. Is Google releasing any new updates to the crawler? Any new system is releasing soon. I am expecting Google updated their crawler by this Sunday night and it may visit as usual to all sites from 12-midnight pacific time. Has anyone observed it, any information regarding on this Google step. Thanks.