The title is the same as in the corresponding topic on Meta.StackExchange.com
Today we changed the way we sort answers on Stack Overflow. We no longer pin the accepted answer (with the green checkmark) to the top of the list of answers. By default, we now sort strictly by votes (descending order by highest score), and the accepted answer's order in the list is based on its score.
The history of feature requests to unpin the accepted answer on Stack Overflow dates back to 2013 and has been raised almost every year since. This year within the Outdated Answers project we did research that showed that we are good to proceed with the accepted answer unpinned.
We can change the way the engine sorts answers in site settings. We would like to hear from you all if it is something you want to see on your site. (Please let me acknowledge in advance that we will not be able to run a test on each site.)
I believe that we should discuss about this also here.