I've been wondering whether this is possible and would like some input.
When I'm upgrading WordPress in any version, would it be possible to simply download the latest WordPress software files, unzip them on my hard drive and then upload them to my server using FTP while overwriting the existing files?
Or would this delete all the existing comments and posts on a blog? I'm asking since this would be the fastest way to upgrade a whole list of blogs to the latest version?
Does anybody experienced enough know this?
Thanks in advance