[Request] Changelog Blogs

@KathleenDollard
Inspired by the rare details in https://github.com/dotnet/vblang/issues/448#issuecomment-504223057, I would be happy to hear more details of the ongoing work of the move to .NET Core 3. Something like this regular blog posts [ASP.NET Core and Blazor updates in .NET Core 3.0 Preview 6](https://devblogs.microsoft.com/aspnet/asp-net-core-and-blazor-updates-in-net-core-3-0-preview-6/) but for VB.NET (and maybe C# together - I don't know whether you are working together with the C# team or whatever their status is), see [list of blogs](https://github.com/dotnet/core/blob/master/release-notes/3.0/preview/3.0.0-preview6.md#blog-roundup) in latest Preview documentation.