Al Kossow, a software curator at the Computer History Museum recently published some exciting news about the Lisa OS:
Just wanted to let everyone know the sources to the OS and applications were recovered, I converted them to Unix end of line conventions and spaces for Pascal tabs after recovering the files using Disk Image Chef, and they are with Apple for review.
After that’s done, CHM will do an @CHM blog post about the historical significance of the software and the code that is cleared for release by Apple will be made available in 2018. The only thing I saw that probably won’t be able to be released is the American Heritage dictionary for the spell checker in LisaWrite.