[postgis-users] Upgrading from 1.5

[Dara Unglaube]

 Good morning.
We are running a WAY out of date postgres (9.1) and postgis (1.5). We are
trying to figure out how to upgrade to a current version (hoping to get to
PosgreSQL 11 with postGIS 2.5).  Is there a way to directly upgrade to
postgres11/postgis2.5 without intermediate steps (upgrades)?
Thank you in advance for your time!
Dara
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