The last time I used Julia (around Oct. 2014), I ran into two new (to me) bugs involving bogus exceptions when processing Unicode strings. To work around those, I used a try/catch, but of course that runs into a non-deterministic bug I've found with try/catch. I also hit a bug where a function returned a completely wrong result if you passed it an argument of the wrong type instead of throwing a "no method" error. I spent half an hour writing a throwaway script and ran into four bugs in the core language.