# F# Weekly #12, 2020 – F# 5 & .NET 5 (Preview 1) and The Elmish Book

**URL:** <https://forums.fsharp.org/t/f-weekly-12-2020-f-5-net-5-preview-1-and-the-elmish-book/1238>\
**Category:** General\
**Tags:** news\
**Created:** [March 21, 2020, 11:22am UTC](https://forums.fsharp.org/t/f-weekly-12-2020-f-5-net-5-preview-1-and-the-elmish-book/1238 "2020-03-21T11:22:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sergey\_tihon](https://yyz2.discourse-cdn.com/flex030/user_avatar/forums.fsharp.org/sergey_tihon/32/25_2.png) [@sergey\_tihon](https://forums.fsharp.org/u/sergey_tihon)\
**Post date:** [March 21, 2020, 11:22am UTC](https://forums.fsharp.org/t/f-weekly-12-2020-f-5-net-5-preview-1-and-the-elmish-book/1238/1 "2020-03-21T11:22:08Z")

</div>

Welcome to F# Weekly,  
A roundup of F# content from this past week:

**News**

- [Announcing F# 5 preview 1](https://devblogs.microsoft.com/dotnet/announcing-f-5-preview-1/)
- [Announcing .NET 5 Preview 1](https://devblogs.microsoft.com/dotnet/announcing-net-5-0-preview-1/)
- [The Elmish Book](https://zaid-ajaj.github.io/the-elmish-book/#/)
- [Visual Studio 2019 version 16.5 is now available](https://devblogs.microsoft.com/visualstudio/visual-studio-2019-version-16-5/)
- [Async ValueTask Pooling in .NET 5](https://devblogs.microsoft.com/dotnet/async-valuetask-pooling-in-net-5/)
- [Updates on .NET Core Windows Forms designer](https://devblogs.microsoft.com/dotnet/updates-on-net-core-windows-forms-designer/)
- [ASP.NET Core updates in .NET 5 Preview 1](https://devblogs.microsoft.com/aspnet/asp-net-core-updates-in-net-5-preview-1/)
- [Visual Studio for Mac: Become a Productivity Pro](https://devblogs.microsoft.com/visualstudio/visual-studio-for-mac-become-a-productivity-pro/)
- [Visual Studio for Mac: Refresh(); event recap](https://devblogs.microsoft.com/visualstudio/visual-studio-for-mac-refresh-event-recap/)
- [.NET Conf: Focus On Xamarin is Next Week!](https://devblogs.microsoft.com/xamarin/xamarin-conf-one-week-away/)
- [GitHub Mobile App](https://github.com/mobile/)
- [What’s New for Xamarin Developers in Visual Studio 2019 version 16.5](https://devblogs.microsoft.com/xamarin/whats-new-for-xamarin-developers-in-visual-studio-2019-version-16-5/)

> <https://twitter.com/zaid_ajaj/status/1240067954768822272>

**Videos and Slides**

- [F# Online - Scott Wlaschin - Property Based Testing](https://www.youtube.com/watch?v=99oO-6EIyck&feature=youtu.be)
- [Finishing the compiler interface to get tooltips and start on the chatbot - Twitch Steam 1st March 2](https://www.youtube.com/watch?v=81Ec99VFeFg&feature=youtu.be) - 7sharp9
- [Роман Лиман «Зачем мы пишем на F# в продакшене»](https://www.youtube.com/watch?v=pLUV5vJM0TA&feature=youtu.be)
- [F#, Fable and Ionide hacking - adding profiler to VSCode](https://www.twitch.tv/videos/569112496?filter=archives&sort=time) - Krzysztof Cieślak
- Hacking F# OSS tooling: [Part 1](https://www.twitch.tv/videos/570505015?filter=archives&sort=time) & [Part 2](https://www.twitch.tv/videos/571263149?filter=archives&sort=time) - Krzysztof Cieślak
- [.NET Design Review: ARM Intrinsics](https://www.youtube.com/watch?v=gGjTgHAHAKA&feature=youtu.be)

> <https://twitter.com/terrajobst/status/1240696375727144961>

**Blogs**

- [Reactivity in F#](https://medium.com/@dagbrattli/reactivity-in-f-4540377d02fa) - Dag Brattli
- [Using F# for rapid data analysis](https://www.compositional-it.com/news-blog/using-f-for-rapid-data-analysis/) - Isaac Abraham
- [Introducing FSharp.CosmosDb](https://www.aaron-powell.com/posts/2020-03-16-introducing-fsharp-cosmosdb/) - Aaron Powell
- [F# 5 Preview Focuses on Interactive Analytics](https://visualstudiomagazine.com/articles/2020/03/19/f-sharp-5-preview.aspx) - David Ramel
- [Introducing Clippit, get your slides out of PPTX](https://sergeytihon.com/2020/03/15/introducing-clippit/) - Sergey Tihon
- [A Primer on Why the Chronic Suffering of the VB.NET Community is neither Necessary nor a Matter of Expense or Practicality](https://anthonydgreen.net/2020/03/15/a-primer-on-why-the-chronic-suffering-of-the-vb-net-community-is-neither-necessary-nor-a-matter-of-expense-or-practicality/) - Anthony D. Green
- [Exploring Four Languages (Rust, Elm, Reason, and F♯)](https://v4.chriskrycho.com/exploring-four-languages.html) - Chris Krycho

**F# vNext**

> <https://twitter.com/pblasucci/status/1239842935006519296>

- [Add support for referencing .NET projects in F# interactive](https://github.com/dotnet/fsharp/issues/8764)
- F# Language Suggestions:
  - [Bindings in catch/finally blocks of computation expressions](https://github.com/fsharp/fslang-suggestions/issues/853)

**GitHub projects**
- [ChrisPritchard/FSH](https://github.com/ChrisPritchard/FSH) - F# Shell with integrated F# scripting. Like Bash or Powershell, but better 'cause F#
- [ilmaestro/FsLamp](https://github.com/ilmaestro/FsLamp) - F# Text Adventure game engine.
- [dotnet/interactive](https://github.com/dotnet/interactive) - data scientists and developers a way to explore data, experiment with code, and try new ideas effortlessly
- [dotnet/tye](https://github.com/dotnet/tye) - a tool that makes developing, testing, and deploying microservices and distributed applications easier.
- [nmfisher/nelder-mead-fsharp-fable](https://github.com/nmfisher/nelder-mead-fsharp-fable) - Nelder-Mead Optimization Demo with F# & Fable
- [Krzysztof-Cieslak/DependencyManager.FsProj](https://github.com/Krzysztof-Cieslak/DependencyManager.FsProj) - Dependency Manager loading fsproj into FSI instance

> <https://twitter.com/tforkmann/status/1239176061138669574>

**New Releases**

- [Akkling 0.10.0](https://www.nuget.org/packages/Akkling/0.10.0)
- [SchlenkR.FsHttp 3.0.0](https://twitter.com/SchlenkR/status/1238949707667341314)
- [Pulsar.Client 0.17.0](https://www.nuget.org/packages/Pulsar.Client/)
- [FSharp.Data .WsdlProvider v0.5.0](https://twitter.com/thinkb4coding/status/1240670822378938368)

That’s all for now. Have a great week.

Previous F# Weekly edition – [#11, 2020](http://sergeytihon.com/2020/03/13/f-weekly-11-2020-opensilver-rider-net-core-edition/)
