This book constitutes the thoroughly refereed post-proceedings of the 10th International Workshop on Early Aspects: Current Challenges and Future Directions, held in March 2007 in Vancouver, Canada, co-located with AOSD 2007, the 6th International Conference on Aspect-Oriented Software Development. The papers are organized in topical sections on aspect-oriented requirements, aspect requirements to design, aspect-oriented architecture design, and aspect-oriented domain engineering.