A first working version of the ImageJ2 Updater was integrated into the code base. This is an important step: the Updater can connect not only to the primary ImageJ2 update site, but to any number of update sites a user might configure. Likewise, advanced users may wish to set up their own update sites, which only requires a web site with either direct file access, or SSH/SFTP access (SFTP support was contributed by Jarek Sacha).