Latest version of rsync

The default /usr/bin/rsync on macOS Sonoma and macOS Sequoia differ in their versions. Both versions adhere to protocol 29 of version 2.6.9, but the licenses for these versions are distinct. Additionally, there may be variations in the underlying code.

In macOS Sonoma, the default version is version 2.6.9 (https://download.samba.org/pub/rsync/NEWS#2.6.9), released in November 2006. In macOS Sequoia, the default version is a compatible rsync based on the BSD license (https://github.com/kristapsdz/openrsync).

The command /usr/bin/rsync --version in macOS Sequoia displays openrsync: protocol version 29, rsync version 2.6.9 compatible.

It is recommended to install the latest release of rsync via Homebrew. To install Homebrew, execute the following command:

brew install homebrew

Then, install the latest version of rsync using the command:

brew install rsync

In RsyncUI, navigate to the settings menu and select Rsync and path. If rsync is installed via Homebrew, simply tick the boxes for Rsync ver3.x and ensure that RsyncUI correctly sets the path for rsync.

Note: RsyncUI supports snapshots of files. However, due to a bug in version 2.6.9 of rsync, the snapshot feature in RsyncUI requires the installation of the latest version of rsync.