Couldn't find any official changelog.

Biggest feature of this release seems to be 64bit multicore programming.

My experience with this release so far:

- installation on ubuntu 16.04 worked - it was very easy to create a statically linked executable and run it on my server - excellent foreign function interface - separate compilation mechanism - multicore support - record polymorphism

For me it is just great to see how SML# matures as a platform.