[SAC] [OSGeo] #2004: Upgrade MediaWiki version

[OSGeo]

#2004: Upgrade MediaWiki version
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 Reporter:  Jeff McKenna  |       Owner:  sac@…
     Type:  task          |      Status:  new
 Priority:  major         |   Milestone:
Component:  Wiki          |  Resolution:
 Keywords:                |
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Comment (by christian):

 I would not go for PostgreSQL, almost no MW Extensions support PostreSQL
 as well as MySQL/MariaDB. You will certainly have more trouble maintaining
 a PostgreSQL based MW with Extensions compared to a MariaDB/MySQL.

 And for Semantic MW the PostgreSQL support seems to be broken:

 *https://www.semantic-mediawiki.org/wiki/PostgreSQL

 *https://phabricator.wikimedia.org/T44659

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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/2004#comment:4>
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