This book covers upgrading your existing VisualAge Smalltalk Versions 3.0, 4.0, 4.02, 4.5, 5.0. 5.5/5.5.1/5.5.2 applications to Version 6.0. You should review and understand the following material, as appropriate, prior to loading your existing applications into Version 6.0.
To a limited extent, this book also covers how to upgrade Versions 1.0 through Version 3.0 applications to Version 6.0.