cygwin setup program questions

[t s]

I have some elementary questions regarding the cygwin setup program. I ran the latest version 2.852 (64 bit).

the options are install / re-install / un-install / default

my understanding is as follows;

choosing "install" creates a new installation of the selected cygwin components

choosing "re-install" uninstalls the selected cygwin components, then creates a new installation

choosing "un-install" uninstalls the selected cygwin components

choosing "default" updates the selected cygwin components

so if I wish to update my local installation to the latest release, I would choose "default", as per the following screen capture;

http://www.cpm86.com/default.jpg

What is the function of the "keep" / "cur" / "exp" radio buttons?

Please confirm my understanding of these four options. Thanks. 		 	   		  
--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://x.cygwin.com/docs/
FAQ:                   http://x.cygwin.com/docs/faq/