C# development with Visual Studio Code 

SharpLab (previously known as TryRoslyn)

SharpLab is a .NET code playground that shows intermediate steps and results of code compilation

Languages

SharpLab supports three source languages:

1. C#
2. Visual Basic
3. F# 

Visual Studio development of ASP.NET Core RC2 Web App with PostgreSQL and Entity Framework code first deployed to Ubuntu  

To be clear: this is not Silverlight. This is, in fact, a re-implementation of Silverlight that uses Web Assembly instead of browser plugins to achieve its goals.

protobuf-net is a contract based serializer for .NET code, that happens to write data in the "protocol buffers" serialization format engineered by Google. The API, however, is very different to Google's, and follows typical .NET patterns (it is broadly comparable, in usage, to XmlSerializer, DataContractSerializer, etc). It should work for most .NET languages that write standard types and can use attributes. 

Nuget Package : https://www.nuget.org/packages/protobuf-net 

Top Issues Fixed in Visual Studio 2019 version 16.2.2

• Fixed Test Explorer doesn't show my tests on VS2019 16.2.0
• Fixed a problem where Visual Studio can stop responding during shutdown.

Security Advisory Notices

CVE-2019-1211 Git for Visual Studio Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists in Git for Visual Studio when it improperly parses configuration files. An attacker who successfully exploited the vulnerability could execute code in the context of another local user. To exploit the vulnerability, an authenticated attacker would need to modify Git configuration files on a system prior to a full installation of the application. The attacker would then need to convince another user on the system to execute specific Git commands. The update addresses the issue by changing the permissions required to edit configuration files. 

C# Source Generators

A list of C# Source Generators (not necessarily awesome), because I haven't found a good list yet.

C# Source Generators is a Roslyn compiler feature introduced in C#9/.NET 5. It lets C# developers inspect user code and generate new C# source files that can be added to a compilation. 

BenchmarkDotNet v0.10.13 has been released! This release includes:

• Mono Support for DisassemblyDiagnoser: Now you can easily get an assembly listing not only on .NET Framework/.NET Core, but also on Mono. It works on Linux, macOS, and Windows (Windows requires installed cygwin with obj and as). (See #541)
• Support ANY CoreFX and CoreCLR builds: BenchmarkDotNet allows the users to run their benchmarks against ANY CoreCLR and CoreFX builds. You can compare your local build vs MyGet feed or Debug vs Release or one version vs another. (See #651)
• C# 7.2 support (See #643)
• .NET 4.7.1 support (See 28aa94)
• Support Visual Basic project files (.vbroj) targeting .NET Core (See #626)
• DisassemblyDiagnoser now supports generic types (See #640)
• Now it's possible to benchmark both Mono and .NET Core from the same app (See #653)
• Many bug fixes (See details below) 

Bridge Network Driver

The bridge networking driver is the first driver on our list. It’s simple to understand, simple to use, and simple to troubleshoot, which makes it a good networking choice for developers and those new to Docker. The bridge driver creates a private network internal to the host so containers on this network can communicate. External access is granted by exposing ports to containers. Docker secures the network by managing rules that block connectivity between different Docker networks. 

Overlay Network Driver

The built-in Docker overlay network driver radically simplifies many of the complexities in multi-host networking. It is a swarm scope driver, which means that it operates across an entire Swarm or UCP cluster rather than individual hosts. With the overlay driver, multi-host networks are first-class citizens inside Docker without external provisioning or components. IPAM, service discovery, multi-host connectivity, encryption, and load balancing are built right in. For control, the overlay driver uses the encrypted Swarm control plane to manage large scale clusters at low convergence times. 

MACVLAN Driver

The macvlan driver is the newest built-in network driver and offers several unique characteristics. It’s a very lightweight driver, because rather than using any Linux bridging or port mapping, it connects container interfaces directly to host interfaces. Containers are addressed with routable IP addresses that are on the subnet of the external network.

As a result of routable IP addresses, containers communicate directly with resources that exist outside a Swarm cluster without the use of NAT and port mapping. This can aid in network visibility and troubleshooting. Additionally, the direct traffic path between containers and the host interface helps reduce latency. macvlan is a local scope network driver which is configured per-host. As a result, there are stricter dependencies between MACVLAN and external networks, which is both a constraint and an advantage that is different from overlay or bridge. 

Razor Pages is a new feature of ASP.NET Core MVC that makes coding page-focused scenarios easier and more productive.

Razor Pages requires ASP.NET Core 2.0.0 or later. Tooling support for Razor Pages ships in Visual Studio 2017 Update 3 or later.