How Many Times Does Google Release The Algorithms And Updates Visible To Users?

How many times does Google release the algorithms and updates visible to users?

 

Every day, google do little bit changes in their algorithms, in case Google do big update, then announce their update.Bloggers and website owner can easily get the information of google update.

 

Google is reported to change its search algorithm around 500 to 600 times each year. While most of these updates are small and often aren't even picked up by users and SEO, every once in a while, Google releases major updates.