This section provides upgrade information for Zabbix 4.0:
Direct upgrade to Zabbix 4.0.x is possible from Zabbix 3.4.x, 3.2.x, 3.0.x, 2.4.x, 2.2.x and 2.0.x. For upgrading from earlier versions consult Zabbix documentation for 2.0 and earlier.
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