Each release contains a detailed changelog.txt file within the original downloaded .zip file, so you can find everything in there.. I don't believe these are posted on a specific page of the site (at least not that I'm aware of?)..
I found a post on the blog which shows upgrades and enhancements. I was looking for a specific fix that I flagged earlier and see that it was fixed in v3.0.2
Always treat everyone with respect and courtesy, but trust no one.