Squeak is an open, highly-portable Smalltalk-80 implementation whose virtual machine is written entirely in Smalltalk, making it easy to debug, analyze, and change. The goal of the Squeak project is to create a superior computing and authoring environment, and it includes support for a variety of multimedia in addition to traditional programming tools.

This file contains a version 3.9 image file and changes file. The image file holds an initial collection of objects and classes to build on. The changes file holds source code that is needed by the image but which isn't in the sources file.