Neo Global Development has released a MainNet-compatible version of Neo3-GUI. The new build adjusts to the changes since RC4 and provides default settings for connecting to the N3 MainNet.

Neo3-GUI is a full node application, meaning it maintains a full copy of the Neo blockchain. To perform some actions, users may need to wait for the local state to update to the current block height.

Depending on time and storage space constraints, many users may instead prefer to use N3-compatible light wallets such as NeoLine. Alongside basic wallet functionality, Neo3-GUI also includes tools for contract deployment and invocation, voting for candidates, and signing transactions.

Currently Neo3-GUI is only available on Windows and Mac. The latest version can be downloaded at the following link:
https://github.com/neo-ngd/Neo3-GUI/releases/tag/v1.3.0