I am proud to annouce the publication of the 4th edition of Software Architecture in Practice, co-authored with the esteemed Dr. Len Bass and Dr. Paul Clements. In addition to a complete revision of the entire book, the 4th edition features new chapters on the quality attributes of Deployability, Energy Efficiency, Integrability, Safety. Also we wrote new chapters on Interfaces, Cloud, Mobility, and Virtualization, and several other topics (such as the role of architects in organizations and our thoughts on quantum computing).