The 0.99.x series marches on! Get it from the main Woopsi site:
This release includes the rendering changes discussed recently and a large number of bug fixes. The other big change is yet another slider logic rewrite. This time I admitted defeat and looked around to see what others had done. I’ve re-implemented the formula that the Qt toolkit uses, which has finally eliminated all scrollbar problems.
The full changelog is in the main source archive.
Oh, and one more thing. According to the changelog, tomorrow is the third anniversary of Woopsi’s first release.