I have 3 nodes, all in Ubuntu 16.04 that I have to upgrade.
To install the node, I downloaded the latest stable version from https://www.parity.io/
and then did:
wget wget [LINK_FROM_PARITY] sudo dpkg -i [FILE_DOWNLOADED_FROM_PARITY]
to install it.
What's the best way to upgrade my nodes making sure I don't lose the content of the chain, the enode, the chain config and the peer list?
Does dpkg have an upgrade function or something like that?