XML Import tag validation in Zabbix 5.0 prevented the import of old XML.

Zabbix Versions: from => to

• 2.0.21 => 5.0.14

  Invalid tag "/zabbix_export/templates/template(1)/items/item(1)": the tag "snmpv3_contextname" is missing. [conf.import.php:89 → CApiWrapper->__call() → CFrontendApiWrapper->callMethod() → CApiWrapper->callMethod() → CFrontendApiWrapper->callClientMethod() → CLocalApiClient->callMethod() → CConfiguration->import() → CXmlValidator->validate() → C30XmlValidator->validate() → CXmlValidatorGeneral->doValidate() → CXmlValidatorGeneral->doValidateRecursive() → CXmlValidatorGeneral->doValidateRecursive() → CXmlValidatorGeneral->doValidateRecursive() → CXmlValidatorGeneral->doValidateRecursive() → CXmlValidatorGeneral->doValidateRecursive() in include/classes/import/validators/CXmlValidatorGeneral.php:205]
  

• 2.2.0 => 5.0.14

  Invalid tag "/zabbix_export/templates/template(1)/items/item(1)": the tag "logtimefmt" is missing. [conf.import.php:89 → CApiWrapper->__call() → CFrontendApiWrapper->callMethod() → CApiWrapper->callMethod() → CFrontendApiWrapper->callClientMethod() → CLocalApiClient->callMethod() → CConfiguration->import() → CXmlValidator->validate() → C30XmlValidator->validate() → CXmlValidatorGeneral->doValidate() → CXmlValidatorGeneral->doValidateRecursive() → CXmlValidatorGeneral->doValidateRecursive() → CXmlValidatorGeneral->doValidateRecursive() → CXmlValidatorGeneral->doValidateRecursive() → CXmlValidatorGeneral->doValidateRecursive() in include/classes/import/validators/CXmlValidatorGeneral.php:205]
  

(To 3.0.28, 4.0.26 is work )

Zabbix 5.0 documentation describes the "Version compatibility" of XML import:

Supported XML files
XML files, exported with 1.8, 2.0, 2.2, 2.4, 3.0, 3.2, 3.4, 4.0, 4.2 and 4.4 are supported for import in Zabbix 5.0.

• https://www.zabbix.com/documentation/5.0/manual/appendix/compatibility