Result types, and supporting both a functional style and a more traditional method-call style.
A couple nice ergonomic updates and some breaking changes for consuming the library.
A thing I didn't even realize I could do until after I published it.
If your consumers have to use compiler options, they will be very sad.
A crazy idea: that sometimes a library might just be… done.
A bunch of neat new utility functions on Maybe for arrays and tuples.
Maybe helpers for safe object lookup and
Result helpers for exception-throwing code.