Most Smalltalk systems and most Common Lisp systems and Interlisp and Factor, and, for that matter, some Schemes and the version of Dylan that Apple used to dev

Most Smalltalk systems and most Common Lisp systems and Interlisp and Factor, and, for that matter, some Schemes and the version of Dylan that Apple used to develop the bauhaus OS, all offer the convenience of starting up from a saved image and of saving a new image to preserve incremental changes for next time. Interlisp and most Smalltalk systems also offer the convenience of automatic change tracking, writing your changes to the sources file and the changes file, and providing in-image tools for browsing and managing changes, including things like Interlisp’s Masterscope and Pharo and Squeak’s Monticello. These tools make life more convenient for people who prefer to work mainly with the in-image tools and not to mess with text files that much. But if there’s a Smalltalk system that relies solely on the image file to preserve changes, with no support for other means of change tracking, I’m not aware of it.