The Paper Cuts Microsoft Actually Fixes: A Deep Dive into .NET 10 with Mark J Price

Feb 20, 2026

Mark J Price, prolific .NET author and educator behind a four-book .NET 10 series. He discusses C# 14 highlights and file-based single-file C# apps. They compare desktop UI options like .NET MAUI vs Avalonia and why small Microsoft fixes matter. Support changes and STS timing are covered, plus how tooling and documentation reduce developer friction.

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INSIGHT

C# 14 Finally Adds Extension Members

C# 14 adds extension members using a new extension block to define methods, properties, constructors and more on existing types.
Mark J. Price notes this was debated for ~15 years and preserves backwards compatibility with old static extension methods.

ANECDOTE

How Mark Timed A Four Book .NET 10 Series

Mark described his four-book .NET 10 series: language fundamentals, real-world web, apps & services, and tools & skills.
He timed the first book on C# 14 to ship with .NET 10 GA and used previews to write early content.

INSIGHT

Avalonia Is The Better Desktop Option For Many Apps

Avalonia is a strong desktop alternative to .NET MAUI for cross-platform desktop apps and looks more native for desktop use.
Mark added an Avalonia chapter to his Apps and Services book to recommend it for professional desktop apps.

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This episode of The Modern .NET Show is supported, in part, by RJJ Software's Strategic Technology Consultation Services. If you're an SME (Small to Medium Enterprise) leader wondering why your technology investments aren't delivering, or you're facing critical decisions about AI, modernization, or team productivity, let's talk.

Show Notes

"There's so much that we can talk about with. NET 10 and related things like C# 14. So I'm going to try and focus on a few of the highlights that are personal highlights for me So let's start with the language actually, C# 14."— Mark J Price

Hey everyone, and welcome back to The Modern .NET Show; the premier .NET podcast, focusing entirely on the knowledge, tools, and frameworks that all .NET developers should have in their toolbox. I'm your host Jamie Taylor, bringing you conversations with the brightest minds in the .NET ecosystem.

Today, we're joined by Mark J Price to talk about some of our favourite things in .NET 10 and his new four-part book series on, quite literally, everything .NET. Mark is one of the most prolific authors in the .NET space at the moment, and his new book series is shaping up to be a fantastic resource.

"One of the things that I've always appreciated with Microsoft and their culture is that they have a very strong requirement that thing things are as backwards compatible as possible."— Mark J Price

Along the way, we talked about the recent changes to the STS (aka Standard Term Support) lifecycle for .NET, brining more support to the odd numbered versions of .NET and giving companies more time to migrate from one version to the next. We also covered a very important point when it comes to either STS or LTS towards the end of the episode: essentially, keep your runtimes up to date, folks.

This episode marks the fifth appearance of Mark on the show. Mark has been a wonderful collaborator over the years, and long may that continue. We joke about the fact that Mark deserves an award for the guest with the most episodes, but maybe he does deserve an award. Unless someone out there is willing to beat his record, of course.

Before we jump in, a quick reminder: if The Modern .NET Show has become part of your learning journey, please consider supporting us through Patreon or Buy Me A Coffee. Every contribution helps us continue bringing you these in-depth conversations with industry experts. You'll find all the links in the show notes.

Anyway, without further ado, let's sit back, open up a terminal, type in `dotnet new podcast` and we'll dive into the core of Modern .NET.

Full Show Notes

The full show notes, including links to some of the things we discussed and a full transcription of this episode, can be found at: https://dotnetcore.show/season-8/the-paper-cuts-microsoft-actually-fixes-a-deep-dive-into-net-10-with-mark-j-price/

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Music created by Mono Memory Music, licensed to RJJ Software for use in The Modern .NET Show.

Editing and post-production services for this episode were provided by MB Podcast Services.