Has any one idea about when is Google going to update its search algorithm like penguin or panda recently?

Google totally putting private and most privacy for search algorithms no anyone have idea about when Google going updates.

There is no particular date that Google will update algorithm.Google frequently updates its algorithm.
Google algorithm is important for SEO technique.

In last 2 weeks 4 major Google algo Updates happened..
Google Panda 20
Google Exact Match Domain penalty
Google Penguin update
And last night Google rolled out first major update on Google page layout algo..!!