1) Using zypper, "zypper up" updates system, "zypper pach" should work quicker and seems intended to install updates with security or recommended bug fixes.
2) Use YaST Online Update - A GUI tool similar
What corporate would insist the desktop user, needs to have a functioning "Updater Aplet"? The title to this comment seems an exaggeration to me.
https://bugzilla.novell.com/show_bug.cgi?id=227511#c26 shows update through authenticating proxy got fixed, even if the "Updater Aplet" wasn't.
If you looked at .curlrc when trying 11.2 release, then it was probably wasted time, as curl(1) has been replaced with aria2c by the package update stack.
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