What’s Happened Since February?

One way to think about it is that bash is a 30-year-old program consisting of 140K lines of C code, and Oil has to replicate most of that functionality [1]. I worked on more aspects of the interactive shell, e.g.

I statically typed the whole OSH front end with MyPy, which is around 10K lines of code. I decided that the headline for that release will be OSH Has Useful Error Messages.

Source: www.oilshell.org