# Observations on .Net 11

**URL:** https://talk.remobjects.com/t/observations-on-net-11/34337
**Category:** Elements
**Tags:** net
**Created:** [November 13, 2026, 8:58pm UTC](https://talk.remobjects.com/t/observations-on-net-11/34337 "2026-11-13T20:58:43Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![phil2](https://talk.remobjects.com/letter_avatar_proxy/v4/letter/p/3ab097/32.png) [@phil2](https://talk.remobjects.com/u/phil2)
#### Post date: [November 13, 2026, 8:58pm UTC](https://talk.remobjects.com/t/observations-on-net-11/34337/1 "2026-11-13T20:58:44Z")

</div>

I have upgraded all of my development host computers to .Net SDK 11, upgraded all of my target computers to .Net Runtime 11, and updated all of my projects and templates for same.

This will be the first in a series of posts containing my observations of the interactions between RemObjects Elements (all version 14.0.0.3155) and .Net 11.

**macOS**

Building in the Fire IDE produces perfect executables. The **`.runtimeconfig.json`** file correctly references .Net 11.

Building from the command line with the following command:

**`/Applications/Fire.app/Contents/Resources/DotNet/dotnet exec /Applications/Fire.app/Contents/Resources/EBuild.dll --configuration:Release --setting:ReferencePath="/Applications/Fire.app/Contents/Resources/References/Echoes/NET"`**

also produces perfect executables, even though **`/Applications/Fire.app/Contents/Resources/DotNet/dotnet`** is version 10.0.14.

I did learn the hard way to remove an old **`Fire.app`** directory before copying the new one.

---

<div class="post-metadata">

### Author: ![phil2](https://talk.remobjects.com/letter_avatar_proxy/v4/letter/p/3ab097/32.png) [@phil2](https://talk.remobjects.com/u/phil2)
#### Post date: [November 13, 2026, 11:31pm UTC](https://talk.remobjects.com/t/observations-on-net-11/34337/2 "2026-11-13T23:31:30Z")

</div>

**Windows**

Building in either Visual Studio or Water IDE produces perfect executables. The **`.runtimeconfig.json`** file correctly references .Net 11.

Building from the command line with the following command:

```auto
"C:/Program Files (x86)/RemObjects Software/Elements/Bin/EBuild.exe" --configuration:Release also produced perfect executables

```

also produces perfect executables. The **`.runtimeconfig.json`** file correctly references .Net 11.

---

<div class="post-metadata">

### Author: ![phil2](https://talk.remobjects.com/letter_avatar_proxy/v4/letter/p/3ab097/32.png) [@phil2](https://talk.remobjects.com/u/phil2)
#### Post date: [November 13, 2026, 11:49pm UTC](https://talk.remobjects.com/t/observations-on-net-11/34337/3 "2026-11-13T23:49:54Z")

</div>

**Linux**

Here things fail. Building in the Earth IDE succeeds, but the **`.runtimeconfig.json`** references .Net 10:

```auto
{
  "runtimeOptions": {
    "tfm": ".NETCoreApp,Version=v10.0",
    "framework": {
      "name": "Microsoft.NETCore.App",
      "version": "10.0.14"
    }
  }
}

```

This was what I actually expected, at best. I was surprised that macOS and Windows produced .Net 11 executables.

Building from the command line with the following command:

**`ebuild --configuration:Release --setting:ReferencePath="/usr/local/lib/elements/References/Echoes/NET"`**

fails with the following error messages:

```bash
You must install or update .NET to run this application.

App: /usr/local/lib/elements-14.0.0.3153/Core/EBuild.dll
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '10.0.9' (x64)
.NET location: /usr/local/lib/dotnet-sdk-11.0.100/

The following frameworks were found:
  11.0.0 at [/usr/local/lib/dotnet-sdk-11.0.100/shared/Microsoft.NETCore.App]

Learn more:
https://aka.ms/dotnet/app-launch-failed

To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=10.0.9&arch=x64&rid=linux-x64&os=linux

```

I tried manually editing **`/usr/local/lib/elements-14.0.0.3153/Core/EBuild.runtimeconfig.json`** to reference .Net 11. Now I can build the project, but the resulting application program **`.runtimeconfig.json`** references .Net 10.