The new update for Zenfone 8 can be identified by firmware version 30.11.51.60. As per the official post, the latest build is currently being rolled out for Zenfone 8 phones carries model number ZS590KS. This counts as system update number 4 for the smartphone since its launch.  As per the changelog, the update should extend battery life to some extent. It also brings optimizations to system stability and fingerprint stability for a better user experience.  Device:

ASUS Zenfone 8

Model:

ZS590KS

Changelog:

Optimized system stability Optimized fingerprint stability Improved system power consumption

As always, the latest software update is rolling out in batches. So, you may experience a delay in receiving the update on your Zenfone 8. To manually check for the latest update, navigate to Settings > System > System Updates. [source | via]

Zenfone 8 gets battery improvement and several optimizations with the new update - 32