There have been a lot of changes in this version, and a massive amount of bug fixing (for the record, it doesn’t suffer from any of Textile4j’s current bugs). It’s hugely reliable, fast, and easy to embed.
It makes use of the GNU regexp library so it can be used on 1.3 JVMs as well as 1.4 and above.
All-in-all, it’s awesome. Get it now!