One of my favorite FREE image editing applications paint.net just released a new update – Version 3.5.3
The update mainly covers just a few bug fixes so new new functionality this time around.
Fixed DirectDraw Surface (.dds) file format support for CPUs which do not have SSE2 (Pentium III, Athlon XP). Fixed an issue with the File->Save dialog related to file type plugins that were only written for opening (importing). Fixed some crashes which were supposed to be "out of memory" errors. Fixed a race condition with the New Image, Canvas Size, and Resize dialogs. If you typed extremely fast you could cause a crash by typing a negative number and immediately pressing OK or Enter. Fixed a File->Save dialog issue in Win7/Vista where it could ask you about overwriting the wrong file.
If enabled, paint.net should auto-update itself just by launching the app. For me, once I approved the update it was finished within a matter of 1-2 minutes. If you don’t have Auto-Update enabled, just grab the download here: