I am running Stretch on most of my computers and use unison to sync between Debian computers and Ubuntu computers. I get segfaults with unison-2.32.52 and unison-2.40.102, and these are the only packages currently available in Ubuntu:
http://packages.ubuntu.com/search?suite=all&arch=any&searchon=names&keywords=unison I guess I'll try to get unison-2.48 by compiling it myself or via a repository: http://linuxg.net/install-unison-on-ubuntu/ I just wanted to add to the argument that this bug is serious. Thanks to all of you who are trying to fix it. Best, Pat