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# 7 What's new in Zabbix 5.4.2

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#### Media types

In [media types](/manual/config/notifications/media#common_parameters),
the maximum number of attempts to send an alert has been increased from
10 to 100; the maximum attempt interval has been increased from 60
seconds to 1 hour.

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#### VMware discovery

The **vmware.vm.discovery**
[item](/manual/vm_monitoring/discovery_fields), used for virtual machine
discovery, now returns an additional field {\#VM.FOLDER} with the chain
of virtual machine parent folders.

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#### Default dashboards

The *Zabbix server health* default dashboard widgets now display
problems for the selected items only.

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#### New templates

The following templates are now available for out-of-the-box monitoring:

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##### DELL PowerEdge

-   *DELL PowerEdge R720 by HTTP* - monitoring of DELL PowerEdge R720
    servers with iDRAC 8/9 firmware 4.32 and later with Redfish API
    enabled via HTTP (see [setup
    instructions](/manual/config/templates_out_of_the_box/http));
-   // DELL PowerEdge R720 SNMP// - monitoring of DELL PowerEdge R720
    servers with iDRAC version 7 and later via SNMP;
-   *DELL PowerEdge R740 by HTTP* - monitoring of DELL PowerEdge R740
    servers with iDRAC 8/9 firmware 4.32 and later with Redfish API
    enabled via HTTP (see [setup
    instructions](/manual/config/templates_out_of_the_box/http));
-   *DELL PowerEdge R740 SNMP* - monitoring of DELL PowerEdge R740
    servers with iDRAC version 7 and later via SNMP;
-   *DELL PowerEdge R820 by HTTP* - monitoring of DELL PowerEdge R820
    servers with iDRAC 8/9 firmware 4.32 and later with Redfish API
    enabled via HTTP (see [setup
    instructions](/manual/config/templates_out_of_the_box/http));
-   *DELL PowerEdge R820 SNMP* - monitoring of DELL PowerEdge R820
    servers with iDRAC version 7 and later via SNMP;
-   *DELL PowerEdge R840 by HTTP* - monitoring of DELL PowerEdge R840
    servers with iDRAC 8/9 firmware 4.32 and later with Redfish API
    enabled via HTTP (see [setup
    instructions](/manual/config/templates_out_of_the_box/http));
-   *DELL PowerEdge R840 SNMP* - monitoring of DELL PowerEdge R840
    servers with iDRAC version 7 and later via SNMP.

You can get these templates:

-   In *Configuration* → *Templates* in new installations;
-   If you are upgrading from previous versions, you can download new
    templates from Zabbix [Git
    repository](https://git.zabbix.com/projects/ZBX/repos/zabbix/browse/templates)
    or find them in the `templates` directory of the downloaded latest
    Zabbix version. Then, while in *Configuration* → *Templates* you can
    import them manually into Zabbix.

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### Breaking changes

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#### Datastore discovery

The output format of the **vmware.datastore.discovery** item has been
changed. Returned JSON no longer contains the "data" object. Now the
item returns a normal JSON containing an array, thus allowing to apply
item value preprocessing steps directly to the returned data without
additional workarounds.

|   |   |
|---|---|
|Old JSON format|New JSON format|
|`{"data":[{"{#DATASTORE}":"FOO",...},{"{#DATASTORE}":"BAR",...}]}`|`[{"{#DATASTORE}":"FOO",...},{"{#DATASTORE}":"BAR",...}]`|

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