KAMiKAZOW wrote:

> Whaaa, after I updated KDE 4.3 yesterday, all my KAddressbook data is
> reverted to the state of November or December 2008.
>
> Does anybody know if it's possible to get my 2009 data back?

KAddressbook should store data under ~/.kde4/share/apps/kabc

Can you find any interesting (newer) file on there?

Greetings,

--
Camaleón