Why...Website Update Not Affects Page Rank in google?

Offcourse it only affected to backlinks its not affected to google page rank

website update does not affect page rank.
if you want to increase your website's page rank then you have to do build back links from quality and Do-follow websites.

Website update is not affected to Google page rank,It will affected only the back-link or inbound link...

If it means then it will effect otherwise not

Hello Prashant :)

If a simple and definitive answer could be given to your question, then the SEO support industry would disappear overnight!

Changes to ranking (I am assuming alexa ranking) occur gradually and are influenced by many factors. Among those factors would be such things as regular posts or updates of valuable content. Intermittent updates may have no significant affect.

If you are talking about Google Page Rank, it is an arbitrary scale of 1 to 10 which is applied by some mystica

If its related to content, then it doesn't. Otherwise it affects if its related to code or developments......