This is a maintenance release, but also introduces support for the new multicall spec, which is a much anticipated feature providing a eth_simulateV1 call, that takes a list of blocks and executes them as if calling multiple eth_calls sequentially. It accepts optional state and precompile overrides, as well as transfer log events. This release also ships with improved verkle support.

Command line

• Remove Goerli flag and config (https://github.com/ethereum/go-ethereum/pull/30289)

Pectra

• Implement EIP-6110: Supply validator deposits on chain (https://github.com/ethereum/go-ethereum/pull/29431)
• Implement EIP-2935: Serve historical block hashes from state (https://github.com/ethereum/go-ethereum/pull/29465)

Core

• Refactorings in the internal journaling (https://github.com/ethereum/go-ethereum/pull/28880)
• Fix a flaw in which the system halts if snapshot generation is stopped while it's not running (https://github.com/ethereum/go-ethereum/pull/30040)
• Fix potential out-of-bound issue in mempool (https://github.com/ethereum/go-ethereum/pull/30430)
• Add state reader abstraction (https://github.com/ethereum/go-ethereum/pull/29761)

Txpool

• Fetch transactions from a peer in the order they were announced in order to minimize nonce gap, causing blob txs to rejected. A special rule is applied to blob transactions: they are retrieved from the network upon reception of the announcement, as blob transactions are never broadcast over the p2p network (https://github.com/ethereum/go-ethereum/pull/30125)

Networking

• Add support for quic entry in ENR (https://github.com/ethereum/go-ethereum/pull/30283)
• fix Write method in metered connection (https://github.com/ethereum/go-ethereum/pull/30355)
• Enable discv5 by default (https://github.com/ethereum/go-ethereum/pull/30327)
• Proper handling for count=0 requests (https://github.com/ethereum/go-ethereum/pull/30305)
• Fix permissions for cloudflare deploy (https://github.com/ethereum/go-ethereum/pull/30326)
• Dial nodes from discv5 (https://github.com/ethereum/go-ethereum/pull/30302)

RPC / tracing

• support for eth_simulateV1, which allows for the simulation a chain of blocks or simply a processing a sequence of eth_calls in one go. It is the implementation of the latest multicall spec (https://github.com/ethereum/go-ethereum/pull/27720)
• Add timeout to Client.Unsubscribe (https://github.com/ethereum/go-ethereum/pull/30318)
• Add coinbase addr to js tracing context (https://github.com/ethereum/go-ethereum/pull/30231)

Misc

• Handle ABIs with contract type parameters (https://github.com/ethereum/go-ethereum/pull/30315)
• Support fixed-size arrays in eip-712 txs (https://github.com/ethereum/go-ethereum/pull/30175)
• Fix txpool deadlock in --dev mode (https://github.com/ethereum/go-ethereum/pull/30264)
• Use post-interop verkle costs (https://github.com/ethereum/go-ethereum/pull/30409, https://github.com/ethereum/go-ethereum/pull/30357)
• Verkle witness builder (https://github.com/ethereum/go-ethereum/pull/30129)

Build

• Work towards reproducible builds (https://github.com/ethereum/go-ethereum/pull/30344, https://github.com/ethereum/go-ethereum/pull/30342, #30346, #30325, #30321, #30320, #29723)

Full Changelog: https://github.com/ethereum/go-ethereum/compare/v1.14.8...v1.14.9

For a full rundown of the changes please consult the Geth 1.14.9 release milestone.

As with all our previous releases, you can find the:

• Pre-built binaries for all platforms on our downloads page.
• Docker images published under ethereum/client-go.
• Ubuntu packages in our Launchpad PPA repository.
• OSX packages in our Homebrew Tap repository.