Please download the latest version v3.0.3 of Energi Gen 3 Core Node available per target operating systems.
If you upgrade from v3.0.0 or older and get an error, please execute
Fatal: Error starting protocol stack: database already contains an incompatible genesis block (have bcc8c389ff0ac4cb, new d8e2a3b0ad08f8ea)
v3.0.0 was released with a safety feature to prevent accidental Gen 3 launch.
You can verify your download by confirming the SHA256 signature matches the one given in SHA256SUMS. For example:
sha256sum -c --ignore-missing SHA256SUMS
SHA256SUMS is GPG signed by:
Ryan Lucchese <email@example.com>
GPG Public Key: C43E788A1BD03C280CAC7D9FF5047BCFDB1DA83F
These tools make sense only for smart contract developers.