[ { "role": "user", "content": "I%20read%20something%20about%20microsoft%20releasing%20a%20new%20build%20system%20for%20command%20line%20users%20who%20don%27t%20use%20msbuild.%20it%20was%20in%20late%202025%20or%20early%202026.%20what%20is%20the%20name%20of%20this%20new%20cli%20build%20tool%3F" }, { "role": "assistant", "content": "The tool you read about is named **Windows App Development CLI**, also known as **winapp CLI**. It was announced in January 2026, and its purpose is to help developers build Windows apps without needing Visual Studio or MSBuild. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai))\n\nHere are some key details about it:\n\n---\n\n### What is winapp CLI?\n\n- It's an open-source command-line tool that simplifies the Windows app development workflow. It handles tasks such as environment setup, package identity, app manifests, certificates, and packaging. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) \n- It supports cross-platform and non-MSBuild toolchains, including frameworks and languages like .NET, Electron, Rust, C++, Dart, etc. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) \n\n---\n\n### Why it Exists\n\nDevelopers who don\u2019t use Visual Studio or MSBuild often encounter friction with:\n\n- Manually setting up SDKs,\n- Generating manifests and certificates,\n- Managing packaging (e.g. MSIX) for distribution or the Microsoft Store.\n\nwinapp CLI is meant to consolidate many of those steps into simpler commands. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai))\n\n---\n\n### Some Usage Highlights\n\n- `winapp init`: Bootstraps your project\u2014downloads SDKs, generates project configuration, creates initial manifest/certificate setup. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) \n- `winapp pack`: Packages your app output into an MSIX package, handling signing or preparing for distribution. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) \n- Commands for managing manifests, updating assets, generating certificates, and enabling debug identity without heavy hand-editing. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) \n\n---\n\nIf you like, I can pull up examples of using winapp CLI, or whether it's ready to use in production environments yet." }, { "role": "user", "content": "yes" }, { "role": "assistant", "content": "Here are some **examples** of how to use **winapp CLI** in workflows, and its **current readiness status** (as of early 2026).\n\n---\n\n## \ud83e\uddf0 Examples of Using winapp CLI\n\nThese are concrete commands and scenarios from Microsoft\u2019s docs and public previews:\n\n| Scenario | Command(s) | What It Does |\n|---|---|---|\n| Initialize a project env | `winapp init` | Sets up SDKs, generates manifest & certificate, bootstraps workspace. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) |\n| Restore a project | `winapp restore` | Replicates environment setup (SDKs, dependencies) for consistent builds. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/?utm_source=openai)) |\n| Create package identity for debugging | `winapp create-debug-identity my-app.exe` | Adds package identity to an EXE so APIs that require identity (notifications, file associations, etc.) can be tested without full packaging. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) |\n| Work with manifests & assets | `winapp manifest update-assets C:\\images\\my-logo.png` | Updates the image assets in `appxmanifest.xml` from one source image, adapting the assets to proper aspect ratios. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) |\n| Generate certificate | `winapp cert generate` | Creates (and optionally installs) a self-signed development certificate for local testing/sideloading. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) |\n| Package for distribution | `winapp pack ./my-app-files --cert ./devcert.pfx` | Produces an MSIX package (signed) ready for Store readiness or sideloading. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) |\n| Electron-specific usage | `winapp node add-electron-debug-identity` | Injects package identity into a running Electron process, enabling Windows APIs that require identity to work during `npm start`. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) |\n\nAlso, there are wrappers/plugins, e.g. **cargo-winapp**, which help Rust projects integrate with winapp more seamlessly:\n\n- `cargo winapp build` \u2014 builds the Rust project and handles identity setup. ([docs.rs](https://docs.rs/cargo-winapp/0.1.1?utm_source=openai)) \n- `cargo winapp run` \u2014 builds, creates debug identity, and runs the app. ([docs.rs](https://docs.rs/cargo-winapp/0.1.1?utm_source=openai)) \n- `cargo winapp pack` \u2014 produces an `.msix` package. ([docs.rs](https://docs.rs/cargo-winapp/0.1.1?utm_source=openai)) \n\n---\n\n## \u2705 State of Readiness & Limitations\n\nWhile winapp CLI brings a lot of features, there are some important caveats about where it is, and what to expect:\n\n- **Public Preview**: The tool is *not yet final*. Microsoft released it in *public preview* in January 2026, meaning features and behavior may still change. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) \n- Some scenarios are still under development or have limited support; new command categories or framework integrations may be added later. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) \n- For developers working outside MSBuild/Visual Studio workflows (e.g. with CMake, Electron, Rust, Tauri, etc.), winapp CLI can significantly reduce friction. But projects with tightly Visual Studio\u2013integrated pipelines may not benefit as much yet. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) \n- CI/CD support is built in via GitHub Actions and Azure DevOps. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/?utm_source=openai)) \n\n---\n\nIf you want, I can pull up whether any significant adoption or migration guides are out yet, or how companies are using winapp CLI in production." }, { "role": "user", "content": "ok%2C%20but%20how%20to%20actually%20build%20executable%3F" }, { "role": "assistant", "content": "Here\u2019s how you use **winapp CLI** to build/prepare a Windows executable (`.exe`) for development debugging or packaging. These are the typical workflows depending on where you\u2019re starting from.\n\n---\n\n## \ud83e\udde0 Prerequisites\n\n- You have a compiled `.exe` already (from your toolchain / language/framework: e.g. .NET, Rust, C++, Electron, etc.). \n- winapp CLI installed (via WinGet, npm, or manual download). ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/?utm_source=openai)) \n- If packaging or signing, you\u2019ll need a certificate (can generate a dev cert using winapp cert commands) and ideally the Windows SDK / App SDK (winapp helps with setup). ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/?utm_source=openai))\n\n---\n\n## \u2699\ufe0f Two Main Paths: Debug / Local Testing vs Packaging\n\n| Goal | What You Do | Commands / Steps |\n|---|---|---|\n| **Add package identity to a built exe for debugging** | Makes `.exe` behave as if it's inside a package, so APIs that require \u201cPackage Identity\u201d can work without needing an installation or full packaging. | `winapp create-debug-identity path\\to\\yourapp.exe` ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai))
Then you run that `.exe` directly to test those APIs. ([blogs.windows.com](https://blogs.windows.com/windowsdeveloper/2026/01/22/announcing-winapp-the-windows-app-development-cli/?utm_source=openai)) |\n| **Package an .exe into an MSIX** | Prepare for distribution \u2014 make a package with manifest, resources, signing, etc. | 1. Gather your `.exe` and all its dependencies into a folder.
2. Generate a manifest: `winapp manifest generate --executable .\\yourcli.exe` ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/packaging-cli?utm_source=openai))
3. Optionally edit `appxmanifest.xml` to configure icons, display names, alias, etc. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/packaging-cli?utm_source=openai))
4. Generate or install a cert: `winapp cert generate` (and optionally `winapp cert install`) if needed. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/packaging-cli?utm_source=openai))
5. Pack: `winapp pack .\\MyCliPackage --cert path\\to\\devcert.pfx` \u2014 this creates an `.msix` package. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/packaging-cli?utm_source=openai)) |\n\n---\n\n## \ud83d\udca1 Examples\n\n### Example 1: Local Debug Identity Only\n\nAssume you've built from your framework and got `./build/Release/myapp.exe`.\n\n```cmd\ncd path\\to\\your\\project\nwinapp create-debug-identity .\\build\\Release\\myapp.exe\n.\\build\\Release\\myapp.exe\n```\n\nThis allows you to test Windows APIs like notifications, file associations, etc. without packaging.\n\n---\n\n### Example 2: Full Packaging for Distribution\n\nAssume your output folder `./dist` contains `myapp.exe` + assets.\n\n```cmd\nmkdir MyCliPackage\ncopy .\\dist\\* MyCliPackage\\\ncd MyCliPackage\nwinapp manifest generate --executable .\\myapp.exe\n\nwinapp cert generate\nwinapp cert install (optional; for local trust)\n\nwinapp pack .\\ --cert path\\to\\generated\\cert.pfx\n```\n\nAfter this, you\u2019ll have `MyCliPackage.msix`, ready for sideload or submission to Microsoft Store. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/packaging-cli?utm_source=openai))\n\n---\n\n## \u26a0\ufe0f Notes & Best Practices\n\n- Make sure the `.exe` you pick matches the architecture (x64, ARM64, etc.) you want to support. May need separate `.msix` packages per architecture. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/packaging-cli?utm_source=openai)) \n- For .NET projects, version 0.2+ of winapp CLI improves integration dramatically: you can just run `winapp init` in a folder with a `.csproj`, then the tool wires up builds, manifest, etc. ([devblogs.microsoft.com](https://devblogs.microsoft.com/ifdef-windows/windows-app-development-cli-v0-2-net-support-manifest-placeholders-winapp-store-and-more/?utm_source=openai)) \n- Use the placeholder tokens like `$targetnametoken$` in your manifest so you don\u2019t need hard-coded `.exe` names. Helps if you have different build configurations (Debug vs Release). ([devblogs.microsoft.com](https://devblogs.microsoft.com/ifdef-windows/windows-app-development-cli-v0-2-net-support-manifest-placeholders-winapp-store-and-more/?utm_source=openai)) \n\n---\n\nIf you tell me what framework you\u2019re using (e.g. .NET console app, Electron, Rust, etc.), I can give you a tailored step-by-step for that scenario." }, { "role": "user", "content": "ok%2C%20so%20for%20a%20c%23%20project%2C%20would%20I%20still%20run%20msbuild%20to%20compile%20and%20create%20the%20executable%3F%20or%20winapp%20create%3F" }, { "role": "assistant", "content": "Here\u2019s how building a C# project works when using **winapp CLI** along with the standard .NET / MSBuild workflow.\n\n---\n\n## \ud83d\udd0d Core Principle\n\n- **winapp CLI does *not replace* the compilation step** for C# projects. You still use `dotnet build`, `msbuild`, or whatever your existing build pipeline is to compile the `.csproj` into a `.exe` (or `.dll`). ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai)) \n- What winapp CLI *adds* are steps around packaging, manifest & identity (package identity for protected APIs), MSIX creation, certificate generation, etc. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai))\n\n---\n\n## \ud83c\udfaf Typical Workflow for C# Project Using winapp CLI\n\nHere\u2019s a sample end-to-end flow for a .NET console or desktop app:\n\n1. **Develop / edit code** in `.cs` files.\n\n2. **Compile / build** using dotnet or MSBuild:\n\n ```\n dotnet build -c Debug\n ```\n\n or `msbuild MyApp.sln /p:Configuration=Debug` etc. This produces the `.exe` in `bin\\Debug\\netX-windows...` folder. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai))\n\n3. **Add package identity** (for APIs that require it) using winapp:\n\n ```\n winapp create-debug-identity .\\bin\\Debug\\net10.0-windows10.0.26100.0\\MyApp.exe\n ```\n\n This only modifies/debug-wraps the `.exe`; it doesn\u2019t re-compile your source. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai))\n\n4. **Run it** normally (or using the exe directly). The debug identity will let you use Windows features that demand package identity (notifications, certain Windows APIs, etc.). ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai))\n\n5. When you\u2019re ready for release / distribution:\n\n - Build for Release:\n ```\n dotnet build -c Release\n ```\n - Generate a certificate:\n ```\n winapp cert generate --if-exists skip\n ```\n - Package into MSIX:\n ```\n winapp pack .\\bin\\Release\\net10.0-windows10.0.26100.0 --manifest .\\appxmanifest.xml --cert .\\devcert.pfx\n ```\n\n - Optionally install the certificate to trust it:\n ```\n winapp cert install .\\devcert.pfx\n ```\n\n You\u2019ll get an `.msix` file ready for sideload or Store distribution. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai))\n\n---\n\n## \u26a1 Key Features & Differences\n\n- **winapp init**: In a folder with `.csproj`, this command lays out the scaffolding: it updates TFM (target framework) if needed, adds App SDK packages, creates manifest & assets. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai)) \n- **Use of tokens**: Manifest placeholders like `$targetnametoken$` mean you don\u2019t hardcode `MyApp.exe`, which helps if you have Debug / Release or different architectures. ([devblogs.microsoft.com](https://devblogs.microsoft.com/ifdef-windows/windows-app-development-cli-v0-2-net-support-manifest-placeholders-winapp-store-and-more/?utm_source=openai)) \n- **Debug identity only modifies identity metadata**, not compilation. So it\u2019s fast. Packaging is heavier because it includes manifest, certificate, signing, etc. ([windowsforum.com](https://windowsforum.com/threads/windows-app-development-cli-v0-2-net-support-manifest-placeholders-and-store-integration.403840/post-961453?utm_source=openai)) \n\n---\n\nIf you tell me your exact .NET version (like .NET 10.0-Windows, .NET 8, etc.) and build output path (Debug/Release), I can map commands precisely to your setup." }, { "role": "user", "content": "so%20if%20I%27m%20starting%20a%20fresh%20c%23%20project%2C%20where%20do%20I%20get%20the%20initial%20.csproj%20file%3F%20are%20there%20other%20setup%20steps%20to%20make%20msbuild%20or%20dotnet%20build%20compile%3F" }, { "role": "assistant", "content": "If you\u2019re starting a fresh C# project and want to use **winapp CLI**, here\u2019s how to get the initial `.csproj` file, plus the extra steps to get everything set up so `dotnet build` or `msbuild` will compile properly.\n\n---\n\n## \ud83d\udd27 Step 1: Create the .csproj with `dotnet new`\n\nThe easiest way to get started is to use the .NET template system.\n\n- Open a terminal (PowerShell, CMD, or shell).\n- Run:\n\n ```bash\n dotnet new console -n MyNewApp\n ```\n\n- This creates a folder `MyNewApp` containing:\n\n - `MyNewApp.csproj`\n - `Program.cs` (or equivalent main file)\n - Some boilerplate files\n\nThat `.csproj` is already in the new SDK-style format. `dotnet build` will compile it out of the box. (learn.microsoft.com) ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai))\n\n---\n\n## \u2795 Step 2: Set or update the Target Framework\n\nTo use Windows-specific features (e.g. Windows App SDK APIs, notifications, identity APIs), you\u2019ll need to target a proper Windows framework in the `.csproj`.\n\nInside `.csproj`, modify (or add) the `TargetFramework` to something like:\n\n```xml\nnet10.0-windows10.0.26100.0\n```\n\nThis tells the compiler/runtime that you expect Windows 10 version **26,100** APIs (or later). (learn.microsoft.com) ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai))\n\n---\n\n## \ud83d\udee0 Step 3: Install the .NET SDK & Windows App SDK\n\nYou\u2019ll want to make sure you have:\n\n1. The .NET SDK installed (e.g. .NET 10+). (learn.microsoft.com) ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai)) \n2. The Windows App SDK NuGet package(s). After `winapp init`, these will be added automatically. (learn.microsoft.com) ([devblogs.microsoft.com](https://devblogs.microsoft.com/ifdef-windows/windows-app-development-cli-v0-2-net-support-manifest-placeholders-winapp-store-and-more/?utm_source=openai))\n\nSo you\u2019d install packages like:\n\n```xml\n\n```\n\nDepending on UI type (console, WPF, WinUI) you may need specific packages. `winapp init` can handle this boilerplate for you. ([learn.microsoft.com](https://learn.microsoft.com/en-us/windows/apps/dev-tools/winapp-cli/guides/dotnet?utm_source=openai))\n\n---\n\n## \ud83d\ude80 Step 4: Run `winapp init`\n\nOnce you have a `.csproj` in your folder, run:\n\n```bash\nwinapp init\n```\n\nWhat this does:\n\n- Detects your `.csproj`\n- Adds necessary NuGet references for Windows App SDK and Windows SDK build tools ([devblogs.microsoft.com](https://devblogs.microsoft.com/ifdef-windows/windows-app-development-cli-v0-2-net-support-manifest-placeholders-winapp-store-and-more/?utm_source=openai)) \n- Generates (if needed) `appxmanifest.xml` + Assets folder\n- Sets up manifest placeholders so executable names, assets, publisher details aren\u2019t hardcoded ([devblogs.microsoft.com](https://devblogs.microsoft.com/ifdef-windows/windows-app-development-cli-v0-2-net-support-manifest-placeholders-winapp-store-and-more/?utm_source=openai))\n\nNote: as of **winapp CLI v0.2** (released March 3, 2026), `init` no longer automatically generates a signing certificate. If you need one, you\u2019ll use `winapp cert generate`. ([devblogs.microsoft.com](https://devblogs.microsoft.com/ifdef-windows/windows-app-development-cli-v0-2-net-support-manifest-placeholders-winapp-store-and-more/?utm_source=openai))\n\n---\n\n## \u2714\ufe0f Sample Starting `.csproj`\n\nHere\u2019s an example minimal `.csproj` after doing the above:\n\n```xml\n\n\n \n Exe\n net10.0-windows10.0.26100.0\n \n true\n \n\n \n \n \n \n\n\n```\n\nThis setup lets `dotnet build` produce `bin\\Debug\\net10.0-windows10.0.26100.0\\MyNewApp.exe` that runs (without identity), and lets `winapp CLI` tools wrap or package it later.\n\n---\n\nIf you tell me whether you're building **console only**, or using **WinUI / WPF / Windows Forms**, I can give you an even more specific `.csproj` plus manifest examples to get going." }, { "role": "user", "content": "how%20to%20list%20dotnet%20installed%20sdks%3F" }, { "role": "assistant", "content": "To list the .NET SDKs installed on your machine, you can use the `dotnet` CLI. Here are the commands that are useful:\n\n---\n\n## \u2705 Commands to Use\n\n- `dotnet --list-sdks`: \n Shows all the SDK versions you have installed, along with their file paths. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet?utm_source=openai))\n\n- `dotnet --list-runtimes`: \n Lists the runtimes installed on your machine. Useful for seeing what versions of .NET you can *run*, not just compile with. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet?utm_source=openai))\n\n- `dotnet --info`: \n Prints a bunch of information including the default SDK (which may be influenced by a `global.json` file in your project), OS version, platform, etc. Also shows the installed SDKs and runtimes among other details. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/how-to-detect-installed-versions?utm_source=openai))\n\n---\n\n## \u2139\ufe0f Example Output\n\nHere\u2019s what the output might look like when you run `dotnet --list-sdks`:\n\n```\n7.0.404 [C:\\Program Files\\dotnet\\sdk]\n8.0.100 [C:\\Program Files\\dotnet\\sdk]\n9.0.306 [C:\\Program Files\\dotnet\\sdk]\n10.0.100 [C:\\Program Files\\dotnet\\sdk]\n```\n\nEach line is one SDK version plus the directory where it's installed. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/how-to-detect-installed-versions?utm_source=openai))\n\n---\n\nIf you want, I can walk you through how to check which SDK is being used in a specific project (especially if there's a `global.json` file affecting that)." }, { "role": "user", "content": "what%20is%20latest%20production%20release%20of%20dotnet%20sdk%3F" }, { "role": "assistant", "content": "The latest **production (stable/LTS)** release of the .NET SDK is **.NET 10.0.103**, paired with runtime **10.0.3**. ([versionsof.net](https://versionsof.net/core/10.0/10.0.3/?utm_source=openai))\n\nHere are some additional details:\n\n- This release came out on **February 10, 2026**, as a security and stability update. ([versionsof.net](https://versionsof.net/core/10.0/10.0.3/?utm_source=openai)) \n- Referred to as the \u201c10.0 release branch,\u201d this is a **Long-Term Support (LTS)** version, which means Microsoft will support it until **November 14, 2028**. ([versionsof.net](https://versionsof.net/core/10.0/10.0.3/?utm_source=openai)) \n\nIf you want, I can also check what the most recent preview or pre-release version is, in case you\u2019re interested in upcoming features." }, { "role": "user", "content": "how%20do%20i%20install%20it%20and%20remove%20the%20old%209.0%20series%3F" }, { "role": "assistant", "content": "Here\u2019s how you can safely install the latest .NET 10 SDK (v10.0.103 / v10.0.104 depending on your platform) and remove the older 9.0 series, particularly on Windows. I\u2019ll also include notes for macOS and Linux where relevant.\n\n---\n\n## \u2705 Step 1: Download and install .NET 10 SDK\n\n### On Windows\n\n1. Go to the official .NET site and download the installer for **.NET 10.0 SDK**. The latest versions are *10.0.103* or *10.0.104* depending on your patch level. ([dotnet.microsoft.com](https://dotnet.microsoft.com/en-US/download/dotnet/10.0?utm_source=openai)) \n2. Run the installer `.exe` and follow the prompts. You\u2019ll need administrative privileges to install to `C:\\Program Files\\dotnet` (or the equivalent path). ([dotnet.microsoft.com](https://dotnet.microsoft.com/en-US/download/dotnet/10.0?utm_source=openai)) \n3. After install, open a new Command Prompt or PowerShell and run: \n ```\n dotnet --info\n ```\n This should show the new SDK version (10.0.xxx) among your installed SDKs. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai))\n\n### On macOS / Linux\n\n- **macOS**: Use the `.pkg` installer from the .NET download page or use `dotnet-install.sh` script. ([dotnet.microsoft.com](https://dotnet.microsoft.com/en-US/download/dotnet/10.0?utm_source=openai)) \n- **Linux**: Use your distribution\u2019s package manager, or use the `dotnet-install` script. For example, on Ubuntu you might do:\n ```\n sudo apt-get update\n sudo apt-get install dotnet-sdk-10.0\n ```\n Or use Microsoft\u2019s official packages. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai)) \n\n---\n\n## \u2699\ufe0f Step 2: Uninstall the old .NET 9.0 SDK (Windows)\n\n1. Open **Settings \u2192 Apps \u2192 Installed Apps** (or \u201cApps & Features\u201d on older versions) in Windows. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai)) \n2. Search for `.NET SDK 9.0` or just `.NET SDK` and look for entries for version 9.x.x. You may see several SDK and runtime entries. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai)) \n3. Select the 9.0 SDK(s) you want to remove, click **Uninstall**, and follow the prompts. Administrator permissions are required. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai)) \n4. Optionally, you can remove older **runtime** entries as well if you are sure none of your projects target runtime 9.x. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai)) \n\n---\n\n## \ud83d\udda5\ufe0f Uninstall on macOS / Linux\n\n- If you installed via a package manager:\n\n ```\n sudo apt remove dotnet-sdk-9.0 (Ubuntu/Debian)\n sudo yum remove dotnet-sdk-9.0 (Fedora/CentOS/RHEL)\n sudo brew uninstall dotnet-sdk@9 (if using Homebrew on macOS)\n ```\n\n Adjust command for your package format. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai))\n\n- If installed manually (via script or tarball):\n\n - Delete the versioned `sdk/9.x.x` folder under the shared dotnet install path (`/usr/share/dotnet/sdk/9.x.x` or wherever `dotnet` is installed).\n - If needed, remove related runtime shared framework directories: `/usr/share/dotnet/shared/Microsoft.NETCore.App/9.x.x`. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai)) \n\n---\n\n## \u26a0\ufe0f Things to check after the switch\n\n- **Global.json**: If you have a `global.json` in your projects specifying `\"sdk\": { \"version\": \"9.x.x\" }`, rename or remove it or update it to the new version. Otherwise `dotnet build / run` will continue using 9.x. \n- **Environment PATH**: Make sure there are no leftover references in `PATH` to old SDK folders (especially manual installations). \n- **Installed Tools**: Tools like `dotnet ef`, `dotnet watch`, etc., if versioned, may need reinstallation or updates. \n- **Compatibility**: .NET 10 is backwards compatible with many .NET 8 & 9 features, but check any library or toolchains you depend on. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/install/remove-runtime-sdk-versions?utm_source=openai)) \n\n---\n\nIf you tell me whether you're using **Windows**, **macOS**, or **Linux**, I can give you exact commands tailored for your OS." }, { "role": "user", "content": "and%20for%20the%20other%20ui%20types%2C%20such%20as%20wpf%2C%20winui%2C%20win32%2C%20winforms%2C%20does%20the%20dotnet%20new%20command%20change%3F" }, { "role": "assistant", "content": "No \u2014 the `dotnet new` command and templates for WPF, WinForms, WinUI, and other Windows UI types continue to work largely the same in .NET 10 as in .NET 9. The main changes relate to defaults (framework version) and updated template features. Here's what\u2019s different, and what stays the same.\n\n---\n\n## \ud83d\udd0d What Stays the Same\n\n- You can still use templates like:\n - `dotnet new wpf`\n - `dotnet new winforms`\n - `dotnet new winui` (WinUI 3 / Windows App SDK)\n- Command syntax works similarly: you may still specify `-o` for output folder, `-n` for name, `-f` for framework, etc.\n- Templates for project types (WPF, WinForms, WinUI) are included in the SDK when the corresponding workloads are installed.\n\n---\n\n## \ud83d\ude80 What\u2019s Changed with .NET 10\n\n1. **Default Framework Target** \n For templates supporting .NET 10, the default target framework has changed to `net10.0` in many template sets. If you create a new project without specifying a framework, it\u2019ll often use .NET 10. ([nuget.org](https://www.nuget.org/packages/VijayAnand.WinUITemplates/?utm_source=openai))\n\n2. **Explicit `-f` flag** \n If you want to target .NET-9 or another earlier version, you\u2019ll now need to explicitly pass `-f net9.0` (or whatever version). The same goes for targeting .NET 10 if your environment is still defaulting to an older version. ([nuget.org](https://www.nuget.org/packages/VijayAnand.WinUITemplates/?utm_source=openai))\n\n3. **Updated Template Features** \n - **WinUI templates** (especially with the \u201cWinUI Blazor\u201d hybrid ones) now include new options like `--maui-class-library` (`-mcl`), `--global-namespace`, `--implicit-namespace`, etc. These help configure hybrid setups and naming conventions. ([nuget.org](https://www.nuget.org/packages/VijayAnand.WinUITemplates/?utm_source=openai)) \n - Template packages for WinUI and hybrid UI types have been updated to officially support .NET 10. ([nuget.org](https://www.nuget.org/packages/VijayAnand.WinUITemplates/?utm_source=openai))\n\n---\n\n## \ud83d\udee0 Example Use Cases\n\n- Create a **new WinUI Blazor hybrid app** targeting .NET 10, using the Maui class library (new in .NET 10 templates):\n ```\n dotnet new winui-blazor -o MyApp -mcl -f net10.0\n ```\n\n- Create a **classic WPF app** targeting .NET 9 (if for compatibility reasons):\n ```\n dotnet new wpf -o MyOldApp -f net9.0\n ```\n\n- Start a **WinForms app** with default settings on .NET 10 (if the SDK is installed and default):\n ```\n dotnet new winforms -o MyWinFormsApp\n ```\n (Will typically target `net10.0` unless otherwise specified.)\n\n---\n\nIf you want, I can pull up a full list of all desktop UI templates included in .NET 10 SDK with their defaults and any deprecated ones\u2014that way you can see what to expect when using `dotnet new`." }, { "role": "user", "content": "I%27m%20talking%20about%20the%20command%20dotnet%20new%20console%20-%20dhow%20does%20this%20change%20with%20different%20ui%20types%3F" }, { "role": "assistant", "content": "Here\u2019s a breakdown of how `dotnet new console` behaves in relation to different UI types (WPF, WinForms, WinUI, etc.), what changes you\u2019ll see in .NET 10, and what remains the same.\n\n---\n\n## \ud83c\udfaf What `dotnet new console` does **not** do\n\n- It does **not** create a UI-based project (like WPF, WinForms, WinUI). For those you need templates like `wpf`, `winforms`, or `winui`. \n- The command always produces a **console/command-line application**, regardless of SDK version. It\u2019s strictly for applications that run in a terminal/command prompt or similar. It has no UI components rendered by default. \n\n---\n\n## \ud83d\udd04 What changes with SDK version (especially .NET 10)\n\n| Area | Pre-.NET 10 Behavior | Changes in .NET 10 |\n|---|---|---|\n| Default target framework (TFM) | If you install .NET 9 SDK, default is `net9.0`. If you're on .NET 8 SDK, default is `net8.0`, etc. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-new-sdk-templates?utm_source=openai)) | Now, when using the .NET 10 SDK, the default becomes `net10.0`. The default TFM for any built-in template\u2014including `console`\u2014shifts up with the SDK version. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-new-sdk-templates?utm_source=openai)) |\n| `-f|--framework` option | You can target earlier versions (if their SDKs are installed) by passing `-f net8.0`, `-f net9.0` etc. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-new-sdk-templates?utm_source=openai)) | Still works\u2014if you have multiple SDKs. If only dotnet10 is installed, then typically defaults to `net10.0`. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-new-sdk-templates?utm_source=openai)) |\n| Additional template options (UI-specific) | `console` doesn\u2019t offer UI flags. It\u2019s just console. To get UI behavior, use UI templates. | No new UI flags added to `console` template. `console` remains non-UI. It may have .NET 10 specific behavior (like native AOT by default for \u201cfile-based\u201d apps), but not UI. ([learn.microsoft.com](https://learn.microsoft.com/en-us/dotnet/core/whats-new/dotnet-10/sdk?utm_source=openai)) |\n\n---\n\n## \ud83d\uddbc\ufe0f How UI type templates differ (compared to `console`)\n\nIf you were to use UI templates instead of `console`, here\u2019s how `dotnet new