v1.20.2

Release notes

⚠️ This release is replaced with v1.20.3 because of the issue in the holesky.cfg and holesky_archive.cfg which caused issues with proper Engine JSON-RPC usage by CL.

This release is aimed for support of new testnet chain in space: Holesky

A few details about Holesky:

• Launch Date: Sept/15, 2023, 14:00 UTC
• Epoch time: 1694786400
• LTS: Dec/2027, EOL: Dec/2028
• Network ID: 17000

More details can be found here: https://github.com/eth-clients/holesky

To use Nethermind with this new chain, follow these steps:

1. Run nethermind with new config:

   • For a Snap Synced node, use the flag --config holesky.
   • For an archival mode setup, use the flag --config holesky_archive.

2. Run a Consensus Layer Client of your choice which supports holesky network.

3. Enjoy!

Changelog

Holesky

• Add holesky configs and chainspec by @smartprogrammer93 in #6034

Other changes

• Fix PPA package post-install script by @rubo in #6045

Full Changelog: 1.20.1...1.20.2