Hello, I have a authoritarian post about best things in 2015 I want to be classified in the same keyword but the date is updated in 2016. I only want to change title from "Best Things in 2015" to "Best Things in 2016". Is this good for the SEO post. Or should I redirect the old post to the new one to pass authority ?
You should change the title and some contents in the website. Then, use the webmaster tool, fetch as Google in order to re-index the post in the Google. Note that the keywords with "2015" will not work for ranking for phrase keyword "2016" Thank you!