On Sun, 24 Apr 2011, Henrique Andrade wrote:
> Recently I noticed that the Gretl updating procedure is a lit bit different.
> In the past, all I needed was to drag the file Gretl.app (inside the
> gretl-intel.dmg file) to my Applications folder. Now I need firstly to
> delete the older version and then copy the new one to Applications folder.
>
> Now, if I try to update in the old way Mac OS/X tells me the file is blocked
> and I have no permission to overwrite Gretl.app (I'm the only administrator
> of my machine).
>
> Is this an expected behaviour?
Well, it's what OS X now seems to do (at least part of the time).
The gretl installer hasn't changed; the behavior of OS X has. If
you can figure out how exactly OS X has changed in this respect
(e.g. via google) perhaps we can find a workaround.