# - \#5 What's new in Zabbix 1.8.1

### - Calculated items

Zabbix 1.8.1 adds support for a new item type - [calculated
items](/manual/config/items#calculated_items). These allow to reuse data
from other items, making all kinds of calculations in the process.

### - New and changed items

-   added support of **system.stat\[\]** under AIX;
-   added support of **net.if.**\* under Windows;
-   added support of **net.if.list** on Windows;
-   added support of **kernel.maxproc\[\]** under Linux 2.6;
-   added possibility to exclude some services from the result of
    Windows key **services\[\]**.

### - Frontend improvements

#### - Single problem handling in maps

There's now an option for each map, controlling single problem
displaying. If it is marked, previous behaviour is used - single problem
has trigger name displayed. If it is disabled, single problem is listed
as "1 Problem"

![](../../../assets/en/manual/about/expand_single_problem.png)

And this is the effect it has on maps:

|   |   |
|---|---|
|![](../../../assets/en/manual/about/map_before.png)|![](../../../assets/en/manual/about/map_after.png)|
|Expanding of the problem enabled|Expanding of the problem disabled|

#### - Read-only hosts better represented

Hosts that user does not have write permissions to (but has read
permissions) are disabled in hostgroup properties and can not be
operated by the user. Previously these hosts were not visible at all.

![](../../../assets/en/manual/about/hostgroup_properties.png)

#### - Host status widget in dashboard

A new widget has been added to dashboard - host status. It shows host
groups and how many hosts in each group have at least one problem. For
those that have, field is coloured according to the trigger with highest
severity.

![](../../../assets/en/manual/about/host_status.png)

#### - Changes to Zabbix status reporting

As of version 1.8.1, "Status of Zabbix" dashboard widget and report is
only available to users of Zabbix Superadmin type. Additionally, this
report/widget shows any PHP installation or configuration problems
found.

![](../../../assets/en/manual/about/new_status_of_zabbix.png){width="600"}

#### - Item colouring in trigger editing

Trigger editing now colours items according to their status - green for
enabled, red for disabled and grey for unsupported. This simple change
should make identifying any problems with triggers much easier.

![](../../../assets/en/manual/about/coloured_item_statuses.png)

#### - Unacknowledged event filter

New filter option added for Monitoring → Triggers view - "Show triggers
with unacknowledged events". This option hides triggers that have all
their events acknowledged.

#### - Updated translations

Translations for the following languages have been updated:

-   Russian;
-   Japanese;
-   French.

### - Other changes

-   Database index fixed, improving node synchronisation a lot. See
    [release notes](http://www.zabbix.com/rn1.8.1.php) for upgrade
    instruction. Fixed index is used by default in new installations.
-   API version changed to 1.1.