Exceptions are a pain in any language, but they have some unique quirks in Haskell. We'll look at how to catch certain types of exceptions, figure out the type of exception you've ended up with, and how to handle it. We'll also get closer to having working change tracking (redo-ifchange). Follow along on GitHub at https://github.com/jekor/redo Notices and updates on Twitter at @jekor https://twitter.com/jekor All Haskell from Scratch videos:    • Haskell from Scratch