[wp-hackers] Auto Update Plugins

[Otto]

On Wed, Feb 18, 2009 at 1:04 PM, scribu <scribu at gmail.com> wrote:
> BTW, when core-upgrade is called, isn't the entire wp-content folder
> preserved? Or just the themes, plugins and uploads folders?

A core upgrade basically copies all the new files from the
distribution over the old ones. Then it goes through a list of "old
files" (defined in wp-admin/includes/update-core.php" and deletes any
files on that list. So any files not on the list and not in the
distribution are preserved.

-Otto