Reth v2.4.0

Performance

Reth v2.4.0 reduces mean newPayload latency by 6.2% compared with v2.3.0.

Experimental revmc JIT EVM support is added and can be activated with --jit.enabled flag.

Networking and transaction propagation get a large set of throughput-oriented improvements: faster pooled transaction recovery (#26304), cached full transaction propagation encoding (#26012), and multiple ECIES / P2PStream allocation reductions.

Features

We continue with Amsterdam and EIP-7928 Block Access List development.

reth p2p bootnode --v5 now co-locates discv4 and discv5 on a single UDP port (--addr), matching go-ethereum and reth's own networking stack, with IPv4/IPv6 support (#26089)

RPC compatibility was improved with eth_sendRawTransactionSync timeout support, geth-aligned raw transaction handling, empty-proof normalization for eth_getProof, and several eth_simulate, eth_estimateGas, fee-history, and txpool fixes.

ParallelStateRoot deprecation

SDK/library users that depend on trie internals should update usages of ParallelStateRoot, ParallelSparseTrie, and ParallelStateRootError that were removed in this version.

Deployments still passing --engine.legacy-state-root should remove it or use --engine.state-root-fallback if they intentionally need synchronous state-root computation.

Update Priority

This table provides priorities for which classes of users should update particular components.

User Class	Priority
Payload Builders	High
Non-Payload Builders	High

Breaking Changes

Runtime / Configuration

• Dropped the legacy parallel state-root runtime path; --engine.legacy-state-root is hidden and now only warns if passed, with the sparse trie task as the normal path and serial fallback retained (#26069).

SDK / State Root APIs

• Refactored state-root strategy APIs to support custom out-of-tree state-root implementations (#26085).
• Removed ParallelStateRoot; downstream users should migrate to the sparse trie task or the serial fallback path (#26121).
• Renamed ParallelStateRootError to StateRootTaskError (#26132).
• Removed ParallelSparseTrie; ArenaParallelSparseTrie is now the default sparse trie implementation used by engine sparse-trie paths (#25453).
• Changed PayloadValidator::validate_block_post_execution_with_hashed_state to receive a lazy overlay-aware parent-state provider and return PostExecutionValidationError; custom implementations overriding this method must update their signatures (#26330).

Features

Performance

• Added experimental revmc JIT support for Ethereum EVM execution, including --jit node flags and reth_jit debug controls (#23230).
• Made JIT opt-in for library crates and fixed JIT CLI/helper handling (#25178, #25183, #25413).
• Reduced transaction conversion latency by emitting recovered transactions in ordered windows instead of waiting on a large Rayon ordered iterator (#25783).
• Avoided full block clones in FCU, RPC cache, and ExEx paths by storing and exposing Arc<RecoveredBlock> handles in Chain (#25645, #25647).
• Optimized state-root and storage-history work with better update_leaves parallelism, parallel write_storage_history, and more aggressive sparse trie caching. (#24774, #25282, #25428).
• Reduced BAL execution overhead by using unordered transaction iteration for BALs, buffering BAL execution cache metrics, and avoiding unnecessary hashed-account reads (#25411, #25366, #25369).
• Offloaded metric rendering and added worker queue / provider metric improvements (#26180, #25649, #25481).
• Routed raw transaction submission through PoolTransaction::recover_raw_transaction, allowing custom pool transaction types to recover directly from encoded bytes (#25238).

Networking & P2P

• Added snap/2 support across negotiation, dedicated eth + snap/2 streams, SnapClient BAL APIs, snap message helpers, the snap client, and inbound snap/2 request routing (#25774, #25752, #25607, #25608, #26049, #26324).
• Improved bootnode reachability by supporting NAT advertisement and dual-stack discv5 addresses, then running discv4 and discv5 on the same UDP port (#25757, #26089).
• Optimized transaction propagation and devp2p decoding with cached full transaction encodings, lower allocation transaction list decodes, preallocated pooled hash metadata, and same-poll pending transaction propagation (#26012, #26164, #26145, #25087).
• Reduced ECIES and P2PStream overhead by caching AES key schedules, reusing snappy buffers, batching flushes, raising the write flush boundary, and avoiding redundant zero-fill/copy work (#26346, #26347, #26349, #26348, #26120, #26119).

RPC

• Added eth_sendRawTransactionSync timeout support matching EIP-7966-style timeout behavior (#25682).
• Added engine_hasBlobs so consensus clients can check ordered blob availability without fetching blob/proof payloads (#25589).
• Added debug_clearTxpool for geth-compatible testing and debugging workflows (#25588).
• Added admin_banPeer and admin_unbanPeer methods (#25140).
• Added the EthSubscriptions trait for logs and header streams (#22155).
• Added testing RPC helpers for committing and building blocks (#25070, #25750).

Engine, Payload & Amsterdam

• Added SSZ Engine API payload and forkchoice status containers, plus SSZ proxy wiring (#26133, #26271, #25422).
• Validated Block Access Lists during flashbots_validateBuilderSubmissionV6 and stored validated payload BALs (#24297, #25268).
• Added BAL-capable download client requirements (#25266).

CLI, ERA & Snapshots

• Added ERE export and extended ERE import through stage sync (#25304, #25262).
• Improved .era import handling by supporting ERA file imports, decoding execution blocks from consensus .era blocks, avoiding misreading consensus .era as era1, and accepting local filename variants (#25404, #25582, #25603, #26006).
• Added import-era support for ERE .erae files and explicitly rejected unsupported .era export paths (#25122, #25576).
• Supported file archives in modular snapshots and exposed SlotPreimages for snapshot importers (#26078, #25035).
• Allowed overriding TraceArgs defaults and added node command helpers (#25736, #25273).

Pruning & Storage

• Added row-budgeted dupsort pruning and used static-file transaction-hash ranges for pruning (#26287, #26312).
• Added sealed or recovered block lookup and DatabaseStateProvider for revm integration (#25338, #25121).

Observability

• Included span attributes in OTLP logs (#26062).
• Improved sparse-trie tracing and span propagation (#26331, #26273).

Bug Fixes

Engine, Trie & Payload

• Restored the state-root task parallelism gate (#26080).
• Included Amsterdam fields in payload IDs and used the execution version header for SSZ routes (#25973, #25925).
• Fixed execution-cache saved-cache tracking and waited for workers before writing cache state (#25460, #25462).
• Fixed BAL handling so empty newly created accounts are excluded from hashed post-state (#26367).

RPC

• Treated eth_sendRawTransaction submissions as local transactions, matching documented local transaction handling (#25412).
• Used revm's effective transaction gas cap for eth_estimateGas bounds (#25612).
• Weighted fee-history rewards by receipt gas for Amsterdam semantics (#26067).
• Normalized eth_getProof empty account and storage trie proofs to empty arrays for geth-compatible EIP-1186 responses (#24719).
• Fixed nonce-related eth_simulate failures and aligned missing-block error behavior (#25079, #25074).
• Aligned eth_fillTransaction default maxFeePerGas with geth's 2 * base_fee + tip behavior (#25258).
• Buffered trace_filter block replays and serialized capability retention as a quantity (#25133, #25324).

P2P & Txpool

• Wired the configured --max-pending-imports value into the transaction manager instead of always using the default (#25921).
• Respected the configured full-transaction broadcast peer count (#25086).
• Accounted for blob transaction access-list size in txpool accounting (#26113).
• Reset peer reputation when admin-unbanning a peer and advertised the bound RLPx port in the discv5 ENR (#26334, #26265).

Pruning, Storage, ERA & Snapshots

• Derived receipts static-file size from prune distance (#26108).
• Returned None for incomplete block receipts in provider lookups (#25410).
• Omitted total difficulty and accumulator fields for post-merge ERE exports (#25379).
• Included repository licenses in Docker build context and added m4 to Nix/native build inputs (#25855, #26321).
• Rejected incomplete chain-file and gzip block data at EOF, preventing malformed imports from looping indefinitely (#26363).

Compatible versions

• revm: 41.0.0
• alloy-*: 2.1.1 (core alloy crates), 1.6.0 (alloy-primitives / sol-types / dyn-abi)
• alloy-evm: 0.37.0
• revm-inspectors: 0.41.0
• alloy-eip7928: 0.4.5

Full Changelog: v2.3.0...v2.4.0

Binaries

See pre-built binaries documentation.

The binaries are signed with the PGP key: 50FB 7CC5 5B2E 8AFA 59FE 03B7 AA5E D56A 7FBF 253E

Reth

System	Architecture	Binary	PGP Signature
	x86_64	reth-v2.4.0-x86_64-unknown-linux-gnu.tar.gz	PGP Signature
	aarch64	reth-v2.4.0-aarch64-unknown-linux-gnu.tar.gz	PGP Signature
	aarch64	reth-v2.4.0-aarch64-apple-darwin.tar.gz	PGP Signature
	Docker	paradigmxyz/reth	-