[
{ type: install
  message: <<EOM
Please see %%ETCDIR%% for sample versions of graylog.conf, log4j.xml, and
and adjust them for your configuration.

For GeoIP support you need to install the net/GeoIP port and
configure the path to the GeoIP databases in the Graylog Web Interface.

When running graylog in a jail, you need to set enforce_statfs for the jail.

For a single-node installation, install:

- databases/mongodb40 or higher
- textproc/elasticsearch6 or higher

And ensure that the elasticsearch cluster name matches that used by graylog.

EOM
}
{ type: upgrade
  message: <<EOM
Graylog v4.3.0+ will not start up, unless the internal stats collector
is disabled with disable_native_system_stats_collector=true

See https://github.com/Graylog2/graylog2-server/issues/12542 for details.

graylog now has a *minimum* dependency of elasticsearch6 or higher. You
may need to re-index after upgrading to ES6, please refer to graylog
docs for more details.

- textproc/elasticsearch6 or higher
- databases/mongodb40 or higher

Remember to backup both MongoDB & ES6 databases before upgrading Graylog
itself.

Beginning with v4.0, Graylog Open Source is licensed under the
Server Side Public License (SSPL). For more details, see
https://www.graylog.org/post/graylog-v4-0-licensing-sspl

If you are running on a dual-stack (ipv4+ipv6) system, you may need to
include the additional JVM tuning parameter:

    -Djava.net.preferIPv4Stack=true

EOM
}
]