Thanks for the answers. Maybe I'll wait, maybe not and hope for the best when the day of the upgrade comes. Now, I don't like 'fixed' dates, because critical bugs tend to be overlooked in distributions that make sure to ship on a certain date, but is there any roadmap to 9.1 does the release happen according to the "when it's ready" principle?
I understand not doing monthly updates to avoid regressions, but I have found a few that aren't present in KDE 4.8. Fixing bugs and introducing new ones often happens at the same time
I believe that Kontact is part of kdepim
The version in PC-BSD is 4.4.11 while the current version is 4.8. That version is totally different. (Not especially more stable, but based on Akonadi. The current revision of Akonadi also takes less resources.) It seems to be a problem in every Linux distribution too. You'd find a lot of requests of how to remove the whole Akonadi experience.
I don't want it removed, I want it fixed. I'd like to try using multiple Kolab servers. The older versions can't do that while the current can. At least the documentation says so.