The 1.0.0 release marks the first release of no code that we consider production ready. No code supports the following languages:
Ruby 0.95+
Python 0.9.0+ (but not Python 3)
Haskell 1.0+
Go r56+
Node.js (eventually)
TensorFlow r1.1+ (because machine learning)
FORTRAN 1956+
Java 1+ (enterprise edition only)
Blockchain (everything can run on a blockchain)