The PNM File Type Plugin (PNMPlugin.dll) does not work with the new Beta (4.0.5152.40811).
When you try to open a PPM image you get the following exception:
System.TypeLoadException: Could not load type 'PaintDotNet.PdnException' from assembly 'PaintDotNet.Core, Version=4.0.5152.40811, Culture=neutral, PublicKeyToken=null'.
at PaintDotNet.Data.PPMFileType.OnLoad(Stream input)
at PaintDotNet.FileType.Load(Stream input) in D:\src\pdn\paintdotnet\src\Data\FileType.cs:line 459
at PaintDotNet.Functional.Func.Eval[T1,TRet](Func`2 f, T1 arg1) in D:\src\pdn\paintdotnet\src\Base\Functional\Func.cs:line 156
