v1.20.0-rc.1

1. Bug fixes

Elixir

• [Kernel] Improve the performance of the type system when working with large unions of open maps
• [Kernel] Do not crash on map types with struct keys when performing type operations
• [Kernel] Mark the outcome of bitstring types as dynamic
• [Kernel] <<expr::bitstring>> will have type binary instead of bitstring if expr is a binary
• [Kernel] Do not crash on conditional variables when calling a function on a module which is represented by a variable