This release fixes lots of little issues. The biggest issue it fixes is gtlsshd was not working on MacOS because gtlsshd had a bug that interacted with the kevent changes. I got Coverity scan and LLVM's scan-build working on Windows and amazingly it only found two small issues in the Windows-specific code. I also spent some time getting fixing some issues on FreeBSD.
So tons of little fixes. You should probably upgrade if you can.