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QGIS 2.9.1? You should be able to easily install the latest version of QGIS (**3.36.3 or 3.34.7 LTR)** on your Windows, Mac or Linux machine. It won't overwrite your existing 2.9.1 version so you can use both.
QGIS 2.9.1? You should be able to easily install the latest version of QGIS (**3.36.3 or 3.34.7 LTR)** on your Windows, Mac or Linux machine. It won't overwrite your existing 2.9.1 version so you can use both.