To update your Seafile Client (e.g. 3.1.7) on your Raspberry you just have to install the new packages of version 4.x.
1. Download packages
- libsearpc-3.0_3.0.4-1_armhf.deb (Same as in Version 3. Not update needed)
2. Install packages
dpkg -i libsearpc-3.0_3.0.4-1_armhf.deb dpkg -i ccnet_4.0.6-1_armhf.deb dpkg -i seafile_4.0.6-1_armhf.deb dpkg -i seafile-client_4.0.6-1_armhf.deb
As usual: Please, report if you have any issues and also report if it worked for you.