# F# Weekly #30, 2019 – Fantomas 3.0, new Saturn, .NET Core 3.0 Preview 7 and new VS

**URL:** <https://forums.fsharp.org/t/f-weekly-30-2019-fantomas-3-0-new-saturn-net-core-3-0-preview-7-and-new-vs/926>\
**Category:** General\
**Tags:** news\
**Created:** [July 28, 2019, 9:15am UTC](https://forums.fsharp.org/t/f-weekly-30-2019-fantomas-3-0-new-saturn-net-core-3-0-preview-7-and-new-vs/926 "2019-07-28T09:15:36Z")\
**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:** [July 28, 2019, 9:15am UTC](https://forums.fsharp.org/t/f-weekly-30-2019-fantomas-3-0-new-saturn-net-core-3-0-preview-7-and-new-vs/926/1 "2019-07-28T09:15:36Z")

</div>

![CIT-Vertical](https://sergeytihon.files.wordpress.com/2019/06/cit-vertical.png?w=300)[Interested in adopting F# but don’t know how to start? Get guidance from experts.](https://incoming.compositional-it.com/coaching-fsharp-enthusiast?utm_source=fsweekly&utm_medium=blog&utm_campaign=enthusiast&utm_content=guidance)

Welcome to F# Weekly,

A roundup of F# content from this past week:

**News**

- [Fantomas 3.0: over-and-above](https://axxes.com/en/net/fantomas-3-0-over-and-above/)
- [Announcing .NET Core 3.0 Preview 7](https://devblogs.microsoft.com/dotnet/announcing-net-core-3-0-preview-7/)
- [ASP.NET Core and Blazor updates in .NET Core 3.0 Preview 7](https://devblogs.microsoft.com/aspnet/asp-net-core-and-blazor-updates-in-net-core-3-0-preview-7/)
- [Visual Studio 2019 version 16.2 Generally Available and 16.3 Preview 1](https://devblogs.microsoft.com/visualstudio/visual-studio-2019-version-16-2-generally-available-and-16-3-preview-1/)
- [Visual Studio 2019 for Mac version 8.2 is now available (and a Preview for 8.3)](https://devblogs.microsoft.com/visualstudio/visual-studio-2019-for-mac-version-8-2-is-now-available-and-a-preview-for-8-3/)
- [What is the Microsoft Data Prep SDK for .NET](https://docs.microsoft.com/en-us/dotnet/api/overview/data-prep/overview-data-prep)?
- [Sylvester.DataFrame - efficient, powerful data frames for F# using the DLR](https://notebooks.azure.com/allisterb/projects/sylvester/html/Sylvester.DataFrame.ipynb)

**Videos & Slides**
- [Introduction to the Elm Architecture with Elmish in F# and Fable](https://www.youtube.com/watch?v=3Qk4bWs7vrs) - Roman Sachse
- [It's about time](https://www.youtube.com/watch?v=Nhhm5yC2HCo&feature=youtu.be) - Christin Gorman
- [How to Perform A Custom Transform in ML.NET](https://www.youtube.com/watch?v=TEnQp5qtopo) - Jon Wood
- [Writing tests with F#](https://channel9.msdn.com/Shows/On-NET/Writing-tests-with-F?utm_source=jeliknes&utm_medium=twitter&utm_campaign=link&WT.mc_id=link-twitter-jeliknes) - Cecil Phillip, Rich Lander, Jeremy Likness
- [Asynchronous programming in F# - Why and How - Episode 1 / 3](https://www.youtube.com/watch?v=u2SlQ5WdL2k&feature=youtu.be) - Roman Sachse
- [Webinar – From F# to JavaScript with Fable](https://blog.jetbrains.com/dotnet/2019/07/24/webinar-from-fsharp-to-javascript-with-fable/)

> <https://twitter.com/JetBrainsRider/status/1154020530418331648>

**Blogs**

- [Writing Tizen .NET Applications in F#](https://samsung.github.io/Tizen.NET/tizen%20.net/writing-tizen-net-applications-in-fsharp/#) - Swift Kim
- [Home Grown IoT - Automated DevOps](https://www.aaron-powell.com/posts/2019-07-22-home-grown-iot-automated-devops/) - Aaron Powell
- [Creating beautiful Xamarin Forms apps using Atomic Design, F# and Fabulous](https://mallibone.com/post/creating-beautiful-xamarin-forms-apps-using-atomic-design-f-and-fabulous) - Mark Allibone
- [.NET Framework to .NET Core to Docker](https://dev.to/magnusstrale/net-framework-to-net-core-to-docker-3m3b?WT.mc_id=link-twitter-jeliknes) - Magnus Stråle
- [.NET Core Counters internals: how to integrate counters in your monitoring pipeline](https://medium.com/criteo-labs/net-core-counters-internals-how-to-integrate-counters-in-your-monitoring-pipeline-5354cd61b42e) - Christophe Nasarre

**F# vNext:**
- New language suggestions:
  - [Improve interop to `Nullable` optional parameters](https://github.com/fsharp/fslang-suggestions/issues/774)

> <https://twitter.com/MangelMaxime/status/1154388094680014848>

**GitHub projects**

- [fsprojects/Incremental.NET](https://github.com/fsprojects/Incremental.NET) - A library for incremental computations. Based on janestreet/incremental for OCaml.
- [Zaid-Ajaj/Feliz](https://github.com/Zaid-Ajaj/Feliz) - A fresh retake of the base React DSL used within Elmish applications, optimized for happiness
- [Clancey/HotUI](https://github.com/Clancey/HotUI) - HotUI is an MVU UIToolkit written in C#
- [arrayfire/arrayfire-dotnet](https://github.com/arrayfire/arrayfire-dotnet) - .NET wrapper for ArrayFire

> <https://twitter.com/dsyme/status/1153265954517897218>

**New Releases**

- [FsLibLog 0.2.1](https://twitter.com/Jimmy_Byrd/status/1154411195933298689)
- [Juniper 0.11.0](https://www.nuget.org/packages/Juniper/)
- [Expecto v8.11.0](https://twitter.com/ExpectoIO/status/1153417912432103424)
- [Saturn 0.9.0](https://www.nuget.org/packages/Saturn/)

> <https://twitter.com/k_cieslak/status/1154796816917028866>

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

Previous F# Weekly edition – [#29, 2019](http://sergeytihon.com/2019/07/21/f-weekly-29-2019-net-core-fsi-in-rider-ionide-vim-fshttp/)
