1.2.0 2019-12-20

Changed

Dry::Struct::Value is deprecated. Dry::Struct instances were never meant to be mutable, we have no support for this. The only difference between Dry::Struct and Dry::Struct::Value is that the latter is deeply frozen. Freezing objects slows the code down and gives you very little benefit in return. If you have a use case for Value, it won't be hard to roll your own solution using ice_nine (flash-gordon)
In the thread of the previous change, structs now use immutable equalizer. This means Struct#hash memoizes its value after the first invocation. Depending on the case, this may speed up your code significantly (flash-gordon)