There is another release of Diodon out the door tagged 1.10.0. This times it comes with a fix to an old issue that when using the primary selection feature it uses a lot of CPU respectively battery. If you are a user of primary selection support check this release out and let us know what you think. To be noted though is that Diodon now fully relies on GTK+ to detect primary selection, so it might be that some selection are not detected as before. However those are hopefully edge cases and are outwayed by the decreased battery usage.
Additionally in this release we switched to Ayatana AppIndicator. This package is available in more distributions then the former used AppIndicator and therefore should make packaging easier.
sudo apt-add-repository ppa:diodon-team/stable
sudo apt-get update
sudo apt-get install diodon
# and for all Unity users there is also a scope
sudo apt-get install unity-scope-diodon