I just upgraded my blog software from Pebble 1.7.1 to Pebble 1.9, as I promised 12 days ago.
This is the least painful upgrades I have experienced of upgrading my blogging software—I just dropped the war file in /var/lib/tomcat5/webapps and adjusted my pebble.properties file to point to the right place.
The new Wiki and tags features are things I want to experiment with.