This IBM® Redbooks® publication introduces a technical overview of the new features, functions, and enhancements available in IBM i 7.1. It provides a summary and brief explanation of new capabilities and what changed in the operating system. This publication also describes many of the licensed programs and application development tools that are associated with IBM i. This publication includes all the enhancements that were delivered with the Technology Refresh 4 and 5 that were made available in 2012. Many new and enhanced functions are described: IBM DB2® for i support for XML and column level encryption IBM PowerHA® for i asynchronous Geographic Mirroring and LUN-level switching Virtualization enhancements for IBM i hosted partitions and IBM PowerVM® Storage management enhancements for solid-state drives Systems management enhancements for Systems Director Navigator for i IBM Rational® software development product enhancements Zend PHP Enhancements Web Application Serving enhancements The information that is provided in this book is useful for clients, IBM Business Partners, and IBM service professionals that are involved with planning, supporting, upgrading, and implementing IBM i 7.1 solutions.