This is a bugfix release for the 2.20.x series of releases (mostly for Maemo 4 and Maemo 5 support). You probably don't need or want this update - the current recommended version is gPodder 3.0.4, which has been released a few weeks ago. Work is currently ongoing on a new feature release of gPodder 3.
This release of gPodder fixes some bugs in the Maemo 4 and Maemo 5 versions of gPodder that have been found since the 2.20 release in October 2011 (bugs 1559, 1562 and 1492). New packages will be available in Maemo Extras soon. Though we highly recommend all users of gPodder on the Desktop to upgrade to gPodder 3.x, you can still update your version of gPodder to 2.20.1 using the source tarball if you haven't made the jump to gPodder 3 yet: