Version 1.x—No Model Schema or Edit Schema. Commands to manipulate base schema objects directly and explicit commands for loading data to cubes. No row sources.
Version 2.x—Introduction of row sources and loading through row sources to cubes. Must explicitly load each row source.
Version 3.x:—Introduction of the Model Schema and the resulting commands for importing and publishing. Introduction of to simplify script maintenance. Introduction of script templates as first-class objects. Introduction of JACL scripts and the generic Java scripting framework inside the server. (JACL scripts provide flexibility in terms of intermingling isadmin commands with access to server resources as well as external access for the Integrated Operational Planning database and other systems.
Version 4.x—Introductions of more , additional scripting language, and more powerful isadmin commands.