Once we release HealthFrame v3 - we will release it with the latest version of the UMLS data sources. Our current development build is using the 2010AA release.
The issue of more frequent releases however - we will need to continue to consider. I certainly appreciate your desire (and others) to see frequent updates. The problem is - with every new content update, we need to undergo significant analysis and regression checking. Just because the NLM releases a new version of the UMLS content, doesn't mean their release is bug free, or that even if its bugfree from their perspective, that it doesn't cause some problem with how we are using it.
So we test very carefully - examining all their changes for mapping issues.
Right now - I'm working on ways to automate much of that validation, and if we can come up with reliable tools, we maybe able to go to semi-annual or even quarterly reference content updates.
Certainly - we should be able to do better than we've done so far in keeping up to date ;-) Thanks for your patience and your feedback
Support Team.