Install OpenSSH 7.3 in Ubuntu 16.04

openssh-7.3.sh

# WARNING: Use this at your own risk. It will probably break your other packages and cause other havoc.
# These days you should just upgrade to Ubuntu 18.04.

$ ssh -V
OpenSSH_7.2p2 Ubuntu-4ubuntu2.1, OpenSSL 1.0.2g  1 Mar 2016

wget https://launchpadlibrarian.net/277739251/openssh-client_7.3p1-1_amd64.deb
wget https://launchpadlibrarian.net/298453050/libgssapi-krb5-2_1.14.3+dfsg-2ubuntu1_amd64.deb
wget https://launchpadlibrarian.net/298453058/libkrb5-3_1.14.3+dfsg-2ubuntu1_amd64.deb
wget https://launchpadlibrarian.net/298453060/libkrb5support0_1.14.3+dfsg-2ubuntu1_amd64.deb
sudo dpkg -i libkrb5support0_1.14.3+dfsg-2ubuntu1_amd64.deb
sudo dpkg -i libkrb5-3_1.14.3+dfsg-2ubuntu1_amd64.deb
sudo dpkg -i libgssapi-krb5-2_1.14.3+dfsg-2ubuntu1_amd64.deb
sudo dpkg -i openssh-client_7.3p1-1_amd64.deb

$ ssh -V
OpenSSH_7.3p1 Ubuntu-1, OpenSSL 1.0.2g  1 Mar 2016

This works and updates your ssh version, but it breaks all these packages in apt, so you won't be able to use apt to install anything else afterwards.

+1 Exactly

why yould you break your installation if the whole point of having installed a distribution is to avoid custom installs. better build from sources and install under /usr/local/bin

This broke all the packages in apt and now I can't run krb5-user :( Somehow I can't manage to uninstall v7.4 and it exists simultaneously with 7.2