[wp-hackers] Upgrade instructions fatally flawed for Mac

[Charles]

> With the files arranged as they currently are, what is the simplest
> method to install these files on a Macintosh?

Users will need to manually copy individual files folder by folder, as long
as WordPress mixes user and system files.

Just to reiterate, this isn't just a Mac OS X issue.  It happens with
anything that overwrites folders (vs. overwrites files) on copy, including
at least one Windows FTP client I've used in the past.

The solution is user folders, e.g. user/themes and user/plug-ins, that never
ship with WP.  That doesn't mean that the wp-content/themes and
wp-content/plug-ins folders go away, it just means that we know that those
can be replaced wholesale since WP "owns" them.

-- Charles