KDE SC 4.9.0 was released on August 1st, 2012.
KDE SC 4.9.1 was released on September 4th, 2012.
Ubuntu 12.10 is beta, but KDE used in it is not.
(I understand that integrating all pieces together is tough job, so rough edges are acceptable at beta stage. But if the software is all buggy and incomplete in the first place, then there is not much you can do about it, regardless of making it part of beta or final distribution release.)
So good news is: KDE4 is finally slowly maturing!
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