Update regarding deb.i2p2.de: the team is in the process of replacing the server.
For people already using the `deb.i2p2.no` or `deb.i2p2.de` repositories : if you are using I2P 2.3.0, you do not need to take any further action, your packages are up to date and will resume when the new server is set up.
For update workarounds - read this forum post.
https://i2pforum.net/viewtopic.php?p=2855#p2855