New packages: unison2.9.1, unison2.9.20, unison2.10.2
Mon Mar 7 14:01:00 GMT 2005

Three new Unison packages are now available in the Cygwin distribution: 
unison2.9.1, unison2.9.20, and unison2.10.2.  These packages replace the 
older 'unison' package, which is now deprecated and has been moved into 
the ZZZRemovedPackages category.

Unison is a file synchronizer for Unix and Windows. It allows two replicas 
of a collection of files and directories to be stored on different hosts 
(or different disks on the same host), modified separately, and then 
brought up to date by propagating the changes in each replica to the 

The reason for separating Unison into three different packages is that 
different versions of Unison will not talk to each other.  For example, if 
you are running Unison 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.  By installing one or more of the packages 
listed above, you can run whichever version you need in order to 
synchronize with your server.  Note, however, that every time you switch 
to a different version of Unison for synchronizing the same set of files, 
you will have to wait while Unison deletes and rebuilds its archive files.

You can safely install more than one of these packages; their executables 
are named /usr/bin/unison-2.9.1.exe etc.  In addition, the package 
installer will create a symlink from /usr/bin/unison.exe to 
/etc/alternatives/unison.exe, and from /etc/alternatives/unison.exe to one 
of the installed /usr/bin/unison-*.exe files.  You can reset this last 
symlink, either manually or using update-alternatives(8), to point to 
whichever version you want to use by default. 
If you are using your Cygwin host as the Unison server, you can invoke 
Unison on the client with '-servercmd /usr/bin/unison-$VERSION' to run the 
version you want on the server, or put 'servercmd 
/usr/bin/unison-$VERSION' into the client's preference file.

Please note that these unison* packages contain the CLI or text-mode 
version of Unison.  The GUI (GTK2) version will be packaged for Cygwin if 
I can get it to work.

Home page:
License:    GPL

Andrew E. Schulman


To update your installation, click on the "Install Cygwin now" link on
the web page.  This downloads setup.exe to your
system.  Then, run setup and answer all of the questions.

If you have questions or comments, please send them to the Cygwin
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