I'd like to upgrade
QGIS from 2.8.1 to the lastest LTR version.
I'm looking for a clear explanation on how to achieve that on Windows (I'm on Windows 7). Such information is not easy to find, including on the
QGIS official website that only gives details about installation.
Is it just necessary to download/install the new version or do I have to uninstall programs before that? I don't want to keep the older version alongside the new one.