[wp-hackers] readme.txt: "Requires PHP 5 tag"

[Aaron D. Campbell]

It doesn't deactivate the plugin normally though, it attempts to 
"Deactivate the plugin silently" and "Prevent deactivation hooks from 
running." Which means that the plugin is deactivated, but the plugin 
isn't TOLD that it was deactivated.

I assume this is because some plugins uninstall themselves when they are 
deactivated and that's not what was wanted.

Will Anderson wrote:
> Actually, if you look at line 403 of
> /wp-admin/includes/class-wp-upgrader.php you'll see that a filter is added
> which calls a function do deactivate the plugin before it is upgraded. So
> the upgrader in fact does exactly what I described as the manual process :)
>