Version history for csImageFile shows you how often it was updated over the past months (starting Nov 26, 2004) as well as 'what is new' information for each update (if available, since this information provided by the author).
v 8.0 updated on Dec 01, 2014
64 bit version released.
v 7.0 updated on Mar 03, 2010
People tagging, more alpha channel support, selections.
v 6.4 updated on Mar 13, 2009
Extra IPTC functionality. HLS adjustment methods.
v 6.3 updated on Oct 22, 2007
Extra IPTC functionality.
v 6.2 updated on Jul 17, 2007
Alpha support to PNG.
v 6.0 updated on Aug 17, 2006
Support for embedded ICC colour profiles.
v 5.0 updated on Dec 09, 2005
Multi page support added for TIFs. Exif attributes can be written.
v 4.4 updated on Nov 26, 2004
IPTC support added for TIFs.
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