Irfan just passed me an email saying that version
3.99 is released. Has some cool new features like Chromatic Aberration removal, PDF export, and now has Unsharp Mask capabilities. It's also free for personal use as well.
As an addition, many years ago, I purchased Irfanview for around $15 (as I recall) since I needed it for work. Irfan Skiljan has since kept me informed on updates. I've also had correspondance with him and can tell you that he's in a class above most.