We are making .NET Core OS agnostic as a general principle. The 260 char limit seems like an unwelcome Windows behavior to include in the Linux and OS X implementation. With that removed, it makes sense to also remove it from Windows. That was our thinking.

We do hear about this limitations on Windows somewhat frequently in the context of .NET. This comes from internal Microsoft teams about as much as anyone else. We were glad to remove this limitation for .NET Core.

Disclosure: .NET Team member