Attempts to upgrade from version 1.113 to 1.114 of Hudson loses the project
history for two of my projects, but one seems to be working. The two projects in
question use the Trac plugin, but are otherwise the same as the one whose
project status seems intact. I also tried 1.115 with the same results.

Downgrading Hudson to 1.113 restores the build history. So I will remain at that
version until the problem is identified. This saddens me because I really like
the new storm clouds in the job list.