I had the opportunity to speak on January 17th at the SF Bay Area Lucene / Solr Meetup about the recent upgrade to SolvNet, Synopsys' premier online customer knowledge base. My team recently moved the search platform from Apache Lucene to Apache Solr 4. The use case presentation discussed some of the benefits of upgrading - along with the challenges.
Slides are available at SlideShare.
Finally, thank you Lucidworks for sponsoring the meetup.