Verze 3.20 už bude ale vyžadovat Framework 3.0. Takže tomu neunikne.

Paint.NET v3.20
This release is still in the planning stages. We are hoping to include a metadata editor, HD Photo support, the ability to save and load presets for some adjustments (such as Curves), and improvements for developers who want to write plugins. This release will also make use of and require the .NET Framework 3.0.