Back in January, the Tizen-powered smartphone called Samsung Z1 went on sale in India, has now received an OTA update, that carries build number Z130HDDU0BOD7. More details on the new Samsung Z1 update over the air (OTA) can be checked right after this jump.
However, there is no change log at present, but early reports suggest it helps with device stability and online mail services. Sized at 17.3MB, the new firmware update brings along several bug fixes, improvements, as well as a new WhatsApp shortcut (for the new WhatsApp app has been included with WhatsApp being updated to version 2.11.17 (04/18/2015)).
This new software update for Samsung Z1 is reportedly only available in India at the moment, and this will be second one that the Z1 has received in less than a month. Once download and installed the official version of WhatsApp, the previous one will be disabled. The WhatsApp application also supports 14 languages as well.
Manually check as shown here, go to Settings > About Device > Software Update > Check for Updates.