- Get link of newest seafile server release from https://github.com/haiwen/seafile-rpi/releases (e.g. v4.4.0/seafile-server_4.4.0_pi.tar.gz)
- Switch to the seafile user: sudo su seafile
- Switch to the seafile home folder: cd ~
- Download the new release: e.g. wget https://github.com/haiwen/seafile-rpi/releases/download/v4.4.0/seafile-server_4.4.0_pi.tar.gz
- Unpack the new release: tar -xzf seafile-server_4.4.0_pi.tar.gz
- Follow the steps in http://manual.seafile.com/deploy/upgrade.html