Slow compilation with .NET SDK 10.0.2xx and 10.0.3xx #370

With the update of Visual Studio 18.3.2 to 18.4.x, we noticed a massive slowdown of compilation of the PDFsharp.sln.

For a complete Rebuild Solution in VS 2026, we got the following timings:

• .NET SDK 10.0.108: 26,104 seconds
• .NET SDK 10.0.204: 01:38,440 minutes
• .NET SDK 10.0.300: 01:40,185 minutes

To get quick compile times with the latest VS 2026 versions (e.g. 18.6.2 or higher), you can do the following:

• Ensure that .NET SDK 10.0.108 is installed; at a command prompt, use dotnet --list-sdks to list all SDKs
• Create a global.json file in the repo folder (with the PDFsharp.sln file) or in any folder above it.

Here is my global.json file, allowing me to switch between different SDK versions:

{
 "sdk": {
 "version": "10.0.108"
 // "version": "10.0.204"
 // "version": "10.0.300"
 }
}