$ wget http://wordpress.org/latest.tar.gz
$ tar zxvf latest.tar.gz
$ cd wordpress/
$ tar cf - . | (cd ~/scott.yang.id.au; tar xvf -)
$ wget -O - http://scott.yang.id.au/wp-admin/upgrade.php?step=1 > /dev/null
Done! Software upgraded, and it is happy serving web pages again. Repeat step 4 and 5 for all my other WordPress running sites. Way too easy. It is what I call an effortless upgrade..
I wondered when will other agile web development framework (RoR, Django, etc) catch up.