If you’ve never heard of it, RoaringApps is a web site that crowd-sources information about Mac OS software compatibility, and then compiles it into handy, searchable database. I have both used and contributed to the site in the past and it is a great resource to use before upgrading your OS to see if your critical programs will run smoothly. The site started as a wiki 2010 to list Snow Leopard compatibility. Earlier this summer, the web site was updated to version 2.0 and now includes lists for Snow Leopard through Mavericks, and now even shows mobile app compatibility with iOS 5 through iOS 7. You can read more about Bryce Cameron and his efforts to create the new site on the RoaringApp blog, and the new features here. Keep in mind that sometimes the accuracy is off, or even unlisted, if not enough people have recorded their experiences. Perhaps an unused feature allows the app to run fine on one user’s Mac, but using the feature on another Mac may crash the program. If you are looking for a particular app, make sure a few people have weighed in before you make a decision. You can help improve the accuracy by creating an account and logging your experiences with apps to help out the community.