Ropsten pre-release

⚠️ Release candidate: do not use this on the mainnet ⚠️

This is a release candidate for the Prater beacon chain. It's not production ready and not recommended for mainnet usage. Please only use this for testnets, and we would appreciate your feedback for this release.

This release consists 54 commits, and these notes reflect only the highlights in the changelist here: v2.1.2...v2.1.3-rc.0

Summary

This RC introduces support for the Ropsten beacon chain, which sets to genesis on Monday, May 30th, 2022 3:00:00 PM +UTC. The merge of Ropsten expects to happen on TTD 43531756765713534, which is early June 2022. Any stakers who wish to participate on the ropsten beacon chain for the merge must use this release or beyond.

Added

• Bake in Ropsten config with CLI flag --ropsten #10700
• Web3 signer support for Bellatrix block #10590
• Builder rest client #10703
• More fuzzing targets #10682
• Enable SSZ-serialized blocks for API end points publishBlock and publishBlindedBlock #10663 #10679

Changed

• Improvements to various logging #10698 #10689 #10724
• Update proposer boost score to 40% #10665

Fixed

• Internal error should not deadlock block on syncing #10681