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# 6 What's new in Zabbix 6.0.1

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### Zabbix agent 2 items

- Native support for the [items](/manual/config/items/itemtypes/zabbix_agent) **net.dns** and **net.dns.record** has been added. These items, used with Zabbix agent 2, now support concurrent check processing. On Windows, custom DNS IP addresses are allowed in the `ip` parameter, `timeout` and `count` parameters are no longer ignored. 
- *smart.disk.discovery* and *smart.attribute.discovery* [items](/manual/config/items/itemtypes/zabbix_agent/zabbix_agent2#s.m.a.r.t.), supported for S.M.A.R.T. plugin, have been updated and now return {#DISKTYPE} macro value in the lower case.

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### Discovery of disabled systemd units

It is now also possible to discover **disabled** systemd units using the *systemd.unit.discovery* item key, 
supported by Zabbix agent 2. Note that to have items and triggers created from prototypes for disabled systemd units, 
it may be necessary to adjust (or remove) prohibiting LLD filters for the {#UNIT.ACTIVESTATE} and {#UNIT.UNITFILESTATE} macros. 

For more details, see [Discovery of systemd services](/manual/discovery/low_level_discovery/examples/systemd).

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### SNI support in encrypted connections
Encrypted TCP connections between Zabbix agent and Zabbix server or proxy now support SNI.  

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### SourceIP support in LDAP simple checks

SourceIP support has been added to LDAP [simple checks](/manual/config/items/itemtypes/simple_checks). *Note* that with OpenLDAP, version 2.6.1 or above is required.

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