there is a bug when i download 8.161 from command prompt i did not see "update available "message on dashboard .
but up2date progress windows works fine !
What do you mean by "downloading it from the command line" ?! Again, SSH is evil. Everything you do via SSH is not supported, neither in the stable product nor in the Beta.
As you've been around for quite some time here now, you should be familiar with the rules of this board and not bother Kai with reports that are senseless and based on non-supported behaviour. The main focus should be to make the product stable, solid and usable, not "ssh root access proof".