1. Many fixes for CL (Consensus Layer) integration in preparation for the merge.
2. Experiment feature to support side forks for the merge (--experimental.overlay)
3. Fixes for WebSocket subscriptions and eth_newFilter and other RPC methods.
4. Added terminal total difficulty for Sepolia POS transition
5. Added --no-download flag that allows using block snapshots obtained without BitTorrent and not launch embedded BitTorrent client - for users who are unable to run BitTorrent in their networks.
6. Various stability and integrity fixes for downloading block snapshot files.
7. New block snapshot files for Görli and BSC
8. New RPC methods eth_callMany and debug_traceCallMany (thanks to external contributor hrthaowang)