• New responsive containers! Over a year in the making, fluid up to a particular breakpoint, available for all responsive tiers.
• New responsive .row-cols classes for quickly specifying the number of columns across breakpoints. This one is huge for those of you who have asked for responsive card decks. 

ASP.NET Core - Clean Architecture - Full Course
In this video, we'll be talking about ASP.NET Core - Clean Architecture. We'll cover the concept of clean architecture, how it helps with scaling and maintainability, works with the MVC pattern, and uses Fluent Validation.
 

What's coming in TypeScript 4?  

Virtual Events for Developers

While in-person conferences and events may be cancelled, there are still many online opportunities for you to stay connected. Browse the full list of virtual events to continue to grow your skills as a developer, contribute to interesting projects, and meet like-minded developers around the world.
 

Enter Visual Studio Code – a free, lean, cross-platform version of your beloved Visual Studio. With a lightweight installation, you can enjoy most full-featured benefits of Visual Studio on a Windows, Mac or Linux machine. This article highlights 10 of the compelling features of VS Code, which aims to be your one-stop rich code editor across any developer platform.

I’ve been at ThoughtWorks for 12 years. Who would have imagined? Instead of writing about my reflections from the past year, I thought I would do something different and post twelve key learnings and observations looking back over my career. I have chosen twelve, not because there are only twelve, but because it fits well with the theme of twelve years. 

Here’s a summary of what’s new in this preview release:

• New Blazor WebAssembly loading page
• Blazor data binding get/set/after modifiers
• Blazor virtualization improvements
• Pass state using NavigationManager
• Additional System.Security.Cryptography support on WebAssembly
• Updated Angular and React templates
• gRPC JSON transcoding performance
• Authentication will use single scheme as DefaultScheme
• IFormFile/IFormFileCollection support for authenticated requests in minimal APIs
• New problem details service
• Diagnostics middleware updates
• New HttpResults interfaces 

یک نکته‌ی تکمیلی: برای کار با نگارش‌های مختلف NET Core. نیاز به چه نگارشی از Visual Studio وجود دارد؟

.NET Core SDK	.NET Core Runtime	Compatible Visual Studio	MSBuild	Notes
2.1.5nn	2.1	2017	15	Installed as part of VS 2017 version 15.9
2.1.6nn	2.1	2019	16	Installed as part of VS 2019
2.2.1nn	2.2	2017	15	Installed manually
2.2.2nn	2.2	2019	16	Installed as part of VS 2019
3.0.1nn	3.0 (Preview)	2019	16	Installed manually

و یا از VSCode استفاده کنید.

- SPs will no longer be made available. Only CUs, and GDRs when needed.
- CUs will be delivered more often at first and then less frequently. Every month for the first 12 months, and every quarter for the remainder 4 years of the full 5-year mainstream lifecycle.
- CUs are delivered on the same week of the month: week of 3rd Tuesday.