manual:installation:upgrade_notes_440

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manual:installation:upgrade_notes_440 [2019/06/21 05:50]
martins-v changed host/template export format in xml/json
manual:installation:upgrade_notes_440 [2020/04/21 11:30]
martins-v item update interval for unreachable hosts (ZBX-16230)
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 ==== 9 Upgrade notes for 4.4.0 ==== ==== 9 Upgrade notes for 4.4.0 ====
  
-​<note important>​Zabbix 4.4.0 is not released yet.</note>+These notes are for upgrading from Zabbix 4.2.x to Zabbix 4.4.0. All notes are grouped into: 
 + 
 +  * ''​Critical''​ - the most critical information related to the upgrade process and the changes in Zabbix functionality 
 +  * ''​Informational''​ - all remaining information describing the changes in Zabbix functionality 
 + 
 +It is possible to upgrade to Zabbix 4.4.0 from versions before Zabbix 4.2.0. See the [[:​manual/​installation/​upgrade|upgrade procedure]] section for all relevant information about upgrading from previous Zabbix versions. 
 + 
 +==== Critical ==== 
 + 
 +=== Jabber, Ez Texting media types removed === 
 + 
 +Jabber and Ez Texting [[:​manual/​config/​notifications/​media|media types]] for delivering notifications have been removed.  
 + 
 +During the upgrade these media types, if present in your installation,​ will be transformed to a script media type with all relevant parameters preserved. However, notifications via Jabber and Ez Texting will not work any more. 
 + 
 +=== Real-time export protocol changed === 
 + 
 +[[:manual/appendix/​install/​real_time_export|Real-time export]] now also includes host names, not only the visible host names. Note that the real-time [[:​manual/​appendix/​protocols/​real_time_export|export protocol]] has been changed with host name information now an object, rather than a string/​array. 
 + 
 +==== Informational ==== 
 + 
 +=== Screen element removed from screens === 
 + 
 +Zabbix screens no longer support the possibility to display another screen as a screen element. After the upgrade, all screen cells containing another screen will be empty. 
 + 
 +=== Linked template selection === 
 + 
 +The auto-select field for selecting linked templates has been removed from host/​template configuration forms. To link templates, click on //Add// and then select templates in the popup window.
  
 === Changed host export format === === Changed host export format ===
  
 The format of host/​template export in XML/JSON has been changed. For more details, see [[:​manual/​introduction/​whatsnew440#​changed_host_export_format|What'​s new in 4.4.0]]. The format of host/​template export in XML/JSON has been changed. For more details, see [[:​manual/​introduction/​whatsnew440#​changed_host_export_format|What'​s new in 4.4.0]].
- 
  
 === Items table split === === Items table split ===
  
 Realtime fields have been split from the ''​items''​ table into a new table called ''​item_rtdata''​. See also [[:​manual/​introduction/​whatsnew440#​items_table_split|What'​s new in 4.4.0]]. Realtime fields have been split from the ''​items''​ table into a new table called ''​item_rtdata''​. See also [[:​manual/​introduction/​whatsnew440#​items_table_split|What'​s new in 4.4.0]].
 +
 +===Zabbix frontend sets own cookie path===
 +
 +If Zabbix frontend runs behind proxy, cookie path set by Zabbix now needs to be specified in the proxy configuration. See [[manual/​appendix/​other_issues#​using Zabbix frontend behind proxy|using Zabbix frontend behind proxy]] for details.
 +
 +=== Item update interval for unreachable hosts ===
 +
 +A bug related to item check time on unreachable hosts has been fixed. This bug was introduced in Zabbix version 3.4.9 or 4.0.0. Now the item check period is recalculated based on the UnavailableDelay value, not on the item update period. This can potentially change unreachable poller performance. For example, if item previously had a delay of 1h then now it will be checked based on the UnavailableDelay value, not every 1h as it was (due to bug). Therefore it is recommended to increase UnavailableDelay value to avoid possible unreachable poller overload.