Announcing the Release of HLM 8.1

SSI is pleased to announce the immediate availability of HLM 8.1. The update contains substantial improvements and bug fixes over and above HLM 8.0, which was released in 2019. Users are encouraged to update their installations. Users with active SSI Live™ HLM subscription licenses can obtain this update free of charge by logging into My Account. List of updates: GUI: Improvements and corrections to model specification in GUI for multiple outcome models, HLM4 etc. Corrected problems with the Exploratory Statistics … Read More


Updated installers are now available for BILOG-MG 4, HLM 8.0 and LISREL 10.3. The updated installers mask the license keys on output and provide a reminder around expiration dates. A few minor bugs have also been fixed. Users holding active BILOG-MG 4, HLM 8.0 and LISREL 10.3 subscription licenses are encouraged to download the latest installers from their accounts on