If you are having a misbehaviour on your applications after upgrading to curl-7.29.0, then you need to see the latest update on -Current. There was a regression that could cause a NULL pointer reference and it was spotted after 7.29.0 has been released, so a patch is now added to prevent this problem and it has been included in Slackware 14.0 and -Current (The two version affected by this update).
The upstream commit gives more information about the changes and the references are taken from Gentoo Bug Tracker.
Akonadi is also rebuilt because it was linked to previous version of boost. A simple rebuilt will fix this problem. Fluxbox is now upgraded to the latest version. This is their first release in 2013 and detailed changes can be seeon the Project's News