Back in January I raised the problem on this list that different versions of the Unison package are mutually incompatible (http://sourceware.org/ml/cygwin-apps/2005-01/msg00028.html). It turns out that by the design of Unison, if you are running, for example, version 2.10.2 and attempt to synchronize with a server running version 2.9.20, Unison will issue an error message about incompatible versions and quit. This design choice was apparently made to safeguard against possible changes in both the network protocol and archive formats between versions of Unison. Whatever one thinks about the wisdom of that decision, it is something that Unison users will have to live with, since major development of Unison has now ceased.
There are at least three different versions of Unison in common use (current stable, and previous and current beta releases), and a new stable version will probably be released soon. Unfortunately, users may not have a choice about which version they use-- if they don't control the server they want to synchronize with, they have to use whatever version it's running. Therefore, in order to provide the most utility to Cygwin users, I've decided to split the existing unison package into three new packages: unison-2.9.1, unison-2.9.20, and unison-2.10.2. The package URLs are below. Note that Debian includes unison 2.9.1, while versions 2.9.20 and 2.10.2 are already provided in the existing Cygwin unison package. Please also move the existing unison package into the "removed" category. That package is now deprecated. Thanks, Andrew. URLs: http://home.comcast.net/~andrex/cygwin/unison-2.9.1/setup.hint http://home.comcast.net/~andrex/cygwin/unison-2.9.1/unison-2.9.1-2.9.1-1.tar.bz2 http://home.comcast.net/~andrex/cygwin/unison-2.9.1/unison-2.9.1-2.9.1-1-src.tar.bz2 http://home.comcast.net/~andrex/cygwin/unison-2.9.20/setup.hint http://home.comcast.net/~andrex/cygwin/unison-2.9.20/unison-2.9.20-2.9.20-1.tar.bz2 http://home.comcast.net/~andrex/cygwin/unison-2.9.20/unison-2.9.20-2.9.20-1-src.tar.bz2 http://home.comcast.net/~andrex/cygwin/unison-2.10.2/setup.hint http://home.comcast.net/~andrex/cygwin/unison-2.10.2/unison-2.10.2-2.10.2-1.tar.bz2 http://home.comcast.net/~andrex/cygwin/unison-2.10.2/unison-2.10.2-2.10.2-1-src.tar.bz2
