The ArcGIS 9.2 Service Pack 4 is available for download on ESRI’s support site

A complete list of the issues that have been fixed in this service pack is available here

esri_support_site

A list of the main enhancements that have been made in the 9.2 Service Packs is available here. These enhancements include new tools and functionality, including the new Cadastral Editor for Survey Analyst