[Qgis-user] QGIS 3.18/3.16.4 LTR

[Martin Bittens]

Hello QGIS users,

I just read the messages about  the latest release of the QGIS 3.18.0
and QGIS 3.16.4 (LTR) packages and must admit that now I am a bit
confused. A couple of days ago I already made an update of my existing
QGIS installation (3.10 and 3.14) using the  network installer
osgeo4w-setup-x86_64.exe which I downloaded from the QGIS homepage. As
usual I selected 'Advanced Installation', the update run without any
problems, and at the end I got the updated QGIS versions 3.18.0 and
3.16.4. But now I read this (e.g.):

Long story short: you cannot upgrade from old installs and have to remove and
reinstall or use a separate directory.  As the new OSGeo4W only supports 64bit
the default root directory was changed to C:\OSGeo4W, which might help with
that if you were on 64bit earlier.

Also note that it now only has one version of Python - namely 3.9, which
doesn't support Windows 7 anymore.  Other updates include Qt 5.15, GDAL 3.2,
PROJ 7.2 and SAGA 7.8.


What does it mean,

- you cannot upgrade from old installs (I did it with success as far I
could see. My QGIS-projects set-up with older QGIS versions are running
obviously without any problems.

- it now only has one version of Python - namely 3.9 (I checked my QGIS
installation, there is no Python 3.9).

- Other updates include ...  SAGA 7.8 (in the package list I could only
see SAGA 2.3.2 LTR and SAGA 2.1.2.)


It would be great if somebody can explain what these messages like
mentioned above are about.

Thank you very much.


Martin





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