Threads are hard to work because when they die then , by default, we don’t get much info. This new feature in ruby 2.5 would provide us more info when threads die due to an uncaught exception. Originally this feature was discussed 6 years ago. Read on to see why it took so long.

https://blog.bigbinary.com/2018/04/18/ruby-2-5-enables-thread-report_on_exception-by-default.html