By end of the year frePPLe v3.0 will be released.
You can access a beta version online at http://demo.frepple.com or download the software for a local installation.
FrePPLe 2.4 is a small incremental release.
FrePPLe 2.3 is a minor patch release for 2.2.
FrePPLe 2.2 is ready and available.