Windows ------- The file "imapsync-2.264.zip" is for Windows users. Unix and MacOS -------------- The file "imapsync-2.264.tgz" is for Unix and OS X users, it contains the source code and also the standalones OS X binaries named "imapsync_bin_Darwin_i386" and "imapsync_bin_Darwin_x86_64". MacOS ----- The binaries "imapsync_bin_Darwin_*" are for OS X users, as a shortcut for a quick upgrade. There is no M1 binary available here. On newer Macs, "control-click > open" on the downloaded to bypass the unrecognized developer block. Run "chmod 755 imapsync_bin_Darwin_VERSION" to make it executable on the Mac after downloading directly. Power users ----------- The file "imapsync" is the source code perl script, it is there just for a quick upgrade on Unix, just download and replace the old one with this one. Sometimes new Perl modules need to be installed, see https://imapsync.lamiral.info/S/news.shtml $Id: README.txt,v 1.5 2024/03/18 13:16:28 gilles Exp gilles $