Just to let you know: it's a pleasure to be able to update to the last freeplane stable version (now 1.6.10) through the *.deb package available in the "Stable" folder on SourceForge. It's really easy since several version and it allows me to use an up-to-date Freeplane ;-).
I am happy that this is useful for you :-)
Indeed maintaining the stable .deb is much easier (it's just part of the regular build)
because the dependency jars are not "externalized" (not in separate packages).