-
Binding operators (let*, let+, and*, etc). They can be used to streamline monadic code.
-
opennow applies to arbitrary module expression in structures and to applicative paths in signatures. -
A new notion of (user-defined) "alerts" generalizes the deprecated warning.
-
New modules in the standard library: Fun, Bool, Int, Option, Result.
-
A significant number of new functions in Float, including FMA support, and a new Float.Array submodule.
-
Source highlighting for errors and warnings in batch mode.
-
Many error messages were improved.
-
Improved AFL instrumentation for objects and lazy values.
See also: detailed list of changes