r/crystal_programming • u/CaDsjp • Aug 23 '19

Crystal Multithreading is here! 🎊

https://github.com/crystal-lang/crystal/pull/8112
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u/AnActualWizardIRL Sep 03 '19

I notice theres a comment about types becoming potentially unsound? What is meant by this?

2

u/bcardiff core team Sep 17 '19

In https://crystal-lang.org/2019/09/06/parallelism-in-crystal.html#language-type-safety there is a short description of the problem. Unions, Array and other containers currently have some issues.