Released on Jan 14th. See more at http://sourceforge.net/projects/kchmviewer/files/kchmviewer/5.3/ Thanks.
Created attachment 265317 [details, diff] Patch to bump kchmviewer-5.2-r1.ebuild to version 5.3 I have only tested this on a ~x86 system, and kchmviewer-5.3 is working fine.
Thank you guys. New version is in the tree.