[gentoo-user] KDE 4.2 and 3.5

[Daniel D Jones <ddjones@riddlemaster.org>]

I have KDE 3.5 and 4.1 installed and am trying to upgrade to 4.2.  I'm getting 
the following:

<=kde-base/kdebase-3.5.9-r4 ("<=kde-base/kdebase-3.5.9-r4" is blocking 
kde-base/kdelibs-4.2.0)

Is there an issue with 3.5 and 4.2 being installed together?  Is the above 
block a known issue that's being worked out as 4.2 is integrated into the 
stable tree?  (I was unable to find a bug filed on it or any other hits on 
Google.)



As a second question, can anyone point me to an informative reference on 
~arch?  It's impossible to search for the term on Google - the tilde gets 
ignored and the number of false positives are overwhelming.  Although I've 
been using Gentoo for awhile, I don't really understand the difference 
between something being in ~arch and something being blocked.  I'd like to 
make myself a little smarter.