Back in the pre 4.0 builds HotSwap debugging was added to allow swapping out of classes at debug time. This was the coolest thing since sliced bread. Sometime before 4.0 came out officially it just stopped. I have Reload classes after compilation set to Ask. It doesn't work on Linux it doesn't work on OS X. None of my colleagues have seen it work either lately. Any suggestions. We are on 4.5 now.