Madrid .NET Meetup

.NET becomes open source!

Madrid .NET Meetup

What is now open source?

● .NET Core 5: componentized framework shipping via NuGet

● RyuJit and the .NET GC

● Microsoft will build .NET Core CLR for Windows, Mac and Linux: https://github.com/dotnet

● .NET Framework 4.6 is open source, but won’t accept contributions nor will be cross-platform

● Already open source: ASP.NET, Roslyn, F# compiler

Madrid .NET Meetup

Madrid .NET Meetup

ASP.NET 5 everywhere

● ASP.NET 5 will be available for Windows, Mac, and Linux: https://github.com/aspnet

● ASP.NET 5 will include a web server for Mac and Linux called kestrel built on libuv.

● Visual Studio 2015 and ASP.NET 5 will support gulp, grunt, bower and npm.

● OWIN: Open Web Interface for .NET modules

Madrid .NET Meetup

.NET Foundation

● Independent organization to foster open development and collaboration around the growing

collection of open source technologies for .NET

● Projects: Roslyn, .NET Core 5, ASP.NET 5, Entity Frameword 6, NuGet, OWIN, System.

Drawing (Mono), Xamarin.Auth, Xamarin.Mobile, Windows Phone Toolkit...

● Board of Directors: Miguel de Icaza, Gianugo Rabellino, Jay Schmelzer

Madrid .NET Meetup

.NET IDEs

● Visual Studio Community Edition (same as Pro). Only restricted for commercial use in enterprise

organizations (>250 PCs or > $1MM in annual revenue)

● Xamarin Studio (Mac/Windows) and MonoDevelop (Linux) for Mono

● Omnisharp: server to bring Intellisense to Sublime, Atom, Brackets, Vim and Emacs

● F# mode for Emacs

Madrid .NET Meetup

What about Mono?

● Plan to integrate .NET Source Code: www.mono-project.com/docs/about-mono/dotnet-

integration/

● In the long term, wants to adopt a .NET-Core like approach.

● As .NET Framework 4.6 is not being ported, Mono continues to be the most comprehensive

platform for Mac and Linux

● Mono projects: MonoGame, CocosSharp, GTK#,

● Commercial versions: Xamarin.Android, Xamarin.iOS, Xamarin.Mac, Mono for Unreal

Madrid .NET Meetup

C# 6.0

● Null-Conditional Operator: value?.Substring(0, 10);

● Auto-Property Initializers: DateTime TimeStamp { get; } = DateTime.UtcNow;

● Primary Constructors: public class Patent(string id, string name)

● Declaration Expressions: public string Text => string.Format(...);

● Static Using Statements: using System.Console;

● NameOf Expressions: nameof(MyClass.MyProperty);

● Await in Catch Block

F# 4.0● By and for the community: 90 out of 159 pull requests accepted

● Constructors as first-class functions

● Simplified use of mutable values

● Support for high-dimensional arrays

● Support for static parameters to provided methods

● Slicing syntax support for F# lists

● Simplified usage of units of measure with printf-family functions

● Modified GC settings on the compiler for better performance

● Normalized collection modules

Madrid .NET Meetup