It seems like config files in the b2evolution-0.9.2 ebuild isn't correctly identified. I upgraded my blog with this function: emerge -vp b2evolution (unmasked 0.9.2) webapp-config -U -h <hostname> b2evolution 0.9.2 In /var/www/<hostname>/htdocs I had a running version of 0.9.1. After the upgrade the conf/ directory was wiped and all the files in the directory was distribution defaults. Moving the old files from the conf/ directory from a backup of 0.9.1 seems to work as intended, but I'm unsure if I'm loosing any of the new functionality of 0.9.2 by just overwriting the config files.
Fixed, sorry for delay