NeoTube has become the first Neo blockchain explorer to support Neo3 Preview4. Preview4 is a development version of Neo’s next evolution, allowing the latest upgrades and new features to be more easily explored by developers.

Source: NeoTube

The NeoTube blockchain explorer currently supports English, Chinese, Russian, and six other languages to service the global Neo community. The multilingual support is the result of a campaign for translators held in Summer 2020. 

In addition to NeoTube, the NEXT community has adapted its mobile and web NeoLine wallets to Preview4. O3 Labs also recently announced it would retire its O3 Explorer to instead provide support for NeoTube.

The official Neo3 TestNet and MainNet are scheduled for launch later in 2021.

The Neo3 NeoTube explorer can be found at the link below:
https://neo3.neotube.io/home