Yes we're up to 5.02 now, which has a few minor changes, but still I'd recommend people download that version.
As for "change log" there is something we've done since 1995. Sometimes I get a bit surprised when people don't see it -- especially since we've made every effort to put it in people's face.
When you first start a new version, a dialog box will come up with a "blue link". Clicking on the "blue link" will take you to the ABOUT box and the VERSION INFO tab, which shows everything we have ever done in every version.
Also, within the help file of each program, it tells you what we have done in the "latest features" section.
And, to some teeny-tiny extent, it tells you what we have done in the downloads section.
Best regards,
William Benner