Each year since 1995, the Australian Institute of Health and Welfare has published a report on disability support services in Australia based on the Commonwealth/State Disability Agreement Minimum Data Set (CSDA MDS). Since the publication of reports for each of the years 1996 to 2000, there have been some important updates and other minor revisions to the final data sets for each year.This report outlines all revisions and includes tables where there have been substantial changes and lists those where there are minor changes.