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I want to upgrade version 9.3 to 9.5 but after some steps I find that I upgraded to version 10, but I'm looking to go from 9.3 to 9.5.

When I type the pg_lsclusters command I find myself with three:

enter image description here

I used sudo pg_dropcluster 9.5 main --stop and sudo pg_dropcluster 10 main --stop to stop both, and sudo pg_upgradecluster 9.3 main command to set the 9.3 cluster to the latest version.

But I want to go to 9.5 instead of 10. The result after what I'm typing is:

enter image description here

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Once you drop cluster for version 9.5, you may upgrade your 9.3 to 9.5 with this command:

sudo pg_upgradecluster -v 9.5 9.3 main

If you omit -v 9.5 it will upgrade the cluster to the latest postgresql version you have installed. For more information, type man pg_upgradecluster.

Now, since you already upgraded to 10, you have to stop the new cluster (version 10) and start the 9.3 again. You may do this with commands:

sudo pg_ctlcluster 10 main stop
sudo pg_ctlcluster 9.3 main start

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