(BetaNews)  Adobe issued an update to its Lightroom professional photographer workflow software on Tuesday. The third release of the beta includes several features requested by testers, including the addition of a tool that helps users keep track of changes made to photos. Lightroom is currently only available as a free download for the Macintosh, however Adobe says it plans to offer a Windows version in a future beta. The software could be considered a competitor to Apple’s Aperture photo application, which the company released in October of last year. Read more