The latest version of Amiga Forever is Amiga Forever 2013.
If you purchased Amiga Forever 2012 between March 1st, 2013 and May 7, 2013 you are eligible for a free downloadable upgrade.
If you purchased Amiga Forever (any version, 1.0 to 2012) before that date, you may purchase Amiga Forever 2013 Plus Edition or Premium Edition at upgrade conditions.
Minor software updates between different revisions (e.g. 2013.0.0.0 to 2013.2.0.0) are free. Please use the built-in Check for Updates functionality (Help menu) to install these.
The video content of the two DVDs has not changed between the 2005-2011 versions, however a new video (included both as DVD and WMV HD file) was added to the 2012-2013 versions.
Upgrades to Amiga Explorer are always free (just re-download).