The month of October, 2018, ushered in the new LTR, QGIS 3.4 “Madeira”. This was a long-awaited version as it unleashes powerful tools for use by GIS enthusiasts in the industry. Switching to QGIS 3.4 is very easy for users who’ve been on the previous 3.x versions. For users moving from 2.x, it might look like a whole new software. Anyway, QGIS 3.4 is here for your use. This version is compiled against Qt 5.5.1, GDAL/OGR 2.2.2, GEOS 3.5.1 and PostgreSQL Client 9.5.2
In this guide, I demonstrate a way to install QGIS 3.4.x in Ubuntu. On Windows, you can get the installer at QGIS Download Page
To install QGIS 3.4 “Madeira” in your Ubuntu 16.x, follow the steps below (These are the steps I used to install 3.4 on my system);
Add the following lines to sources.list
sudo sh -c 'echo "deb https://qgis.org/ubuntugis xenial main" >> /etc/apt/sources.list'
sudo sh -c 'echo "deb-src https://qgis.org/ubuntugis xenial main" >> /etc/apt/sources.list'
Add the PPA
sudo add-apt-repository ppa:ubuntugis/ubuntugis-unstable
Get the Key
wget -O - https://qgis.org/downloads/qgis-2017.gpg.key | gpg --import
gpg --fingerprint CAEB3DC3BDF7FB45
gpg --export --armor CAEB3DC3BDF7FB45 | sudo apt-key add -
Update the System
sudo apt-get update
Install QGIS together with GRASS Plugin
sudo apt-get install qgis python-qgis qgis-plugin-grass
That’s it. Enjoy the new power in QGIS.
You can have more than one version of the QGIS software on both any OS.