This section describes the technical changes that were made in this edition of the book and in previous editions. This edition might also include minor corrections and editorial changes that are not identified.

Summary of Changes
for SG24-7858-03
for IBM i 7.1 Technical Overview with Technology Refresh Updates
as created or updated on December 22, 2014.

The first edition of this book included all the new enhancements that were announced at the General Availability of IBM i 7.1 in early 2010. Following the General Availability of IBM i 7.1, IBM i point / modification releases were replaced by a new release delivery mechanism called a Technology Refresh. A Technology Refresh is a collection of operating system software that is developed together, packaged together, tested together, and delivered as a PTF Group for a base release.

The second edition of this book included all the enhancements that were available in the first three Technology Refreshes (TR1, TR2, and TR3) that were made available since the product went to General Availability.

The third edition of this book included all the enhancements that were available in Technology Refreshes TR4 and TR5 that were announced in 2012.

This fourth edition of the book includes all the enhancements that are available in the next two Technology Refreshes (TR6 and TR7) that were announced in 2013. There are enhancements basically in every topic that is related to IBM i. For this reason, every chapter was modified to include these enhancements.