Background and History of NCIP
The first edition of the NCIP (NISO Circulation Interchange Protocol) standard (version 1.00) was published as ANSI/NISO Z39.83 in 2002. It was then revised in 2008 (version 2.00) to include greater extensibility, improved self-service and error handling, and to address issues that surrounded the first version of the standard. In 2011, a maintenance release (version 2.01) was issued as a draft for trial use, but was not published as an approved standard. In 2012, a new revision (version 2.02) was approved and published.
The Foreword of the published standard provides a history of the changes that were made from one version to the next.