APL64

APL64 is a 64-bit APL interpreter in development by APLNow LLC, intended to be compatible with APL+Win. APLNow began work on the project in 2015 and has issued updates on it in 2018 and 2019.

New APL features described by the implementation team include a string datatype written using chevrons, and "inner functions" defined using control statements   and   rather than. Multi-threading and advanced object-oriented programming features including integration with .NET are also planned.