chore(v4): release 4.3.1

[AztecBot]

Pending Aztec Packages v4 release

4.1.1 (2026-03-11)

� BREAKING CHANGES

• Expose offchain effects when simulating/sending txs (backport feat!: Expose offchain effects when simulating/sending txs #20563) (#21110)
• exposing pub event pagination on wallet (#21197)
• AVM was missing range check on remainder for div in ALU (#21066)
• undo bad fix (#20987)
• Bump l2 gas per note hash (#20862)
• update da gas (#20611)

Features

• (A-302) add reloadKeystore admin RPC endpoint (#20325) (639368d)
• (A-451) error codes for RPC calls (#20560) (639368d)
• (A-514) add API key authentication for admin RPC endpoint (#20411) (639368d)
• add aztec profile command with gate count profiling (#20695) (83ea202)
• add aztec profile flamegraph command (#20741) (83ea202)
• add ergonomic conversions for Noir's Option<T> (#21107) (79156c4)
• add pinned-build support for noir protocol circuit folders (#20961) (6d9f3ba)
• add pinned-build support for protocol contracts in noir-contracts (v4) (#20982) (e654e8a)
• add support for signed integers on contract functions (#20784) (fdd0d0d)
• adding mempool transactions (#20679) (43caf7c)
• allow custom addresses to be prefunded with fee juice in local network (backport #21000) (#21004) (13c7cae)
• alpha payload (#20865) (7a09c3c)
• archiver: add l2 tips cache (#20510) (639368d)
• archiver: return L2 block data to avoid fetching full block (#20503) (639368d)
• automatically stop node from signalling (#20416) (639368d)
• avoid redundant serial zeroing in polynomial allocation (#20670) (715cb89)
• aztec: node enters standby mode on genesis root mismatch (#20937) (ed3f61d)
• call syncImmediate without block number during chain prune (#20717) (43caf7c)
• calldata length validation of public setup function allowlist (#21139) (79156c4)
• check calldata against emitted hashes (#20486) (43caf7c)
• ci.aztec-labs.com: CI cost and metrics tracking (#20100) (639368d)
• disabling peer scoring for block proposals topic (#20577) (6414d9b)
• dynamically adjust missing txs set (#20300) (dedf440)
• expose blockheader getters (#20790) (fdd0d0d)
• Expose offchain effects when simulating/sending txs (backport #20563) (#21110) (79156c4)
• mask all ciphertext fields with Poseidon2-derived values (backport #21009) (#21140) (79156c4)
• Metrics added to the transaction pool (#20477) (639368d)
• notify slack on merge train PR merge (#20614) (dbbeddc)
• orchestrator enqueues via serial queue (#21247) (79156c4)
• p2p: add download metrics to file store tx source (#20601) (639368d)
• printing out public contract function debug logs in a tx (#20749) (83ea202)
• Re-instate the function optionally to delete all transactions in an epoch prune (#20602) (dedf440)
• reduced hashing (#20676) (715cb89)
• reenable function selectors + additional validation in public setup allowlist (backport #20909, #21122) (#21129) (79156c4)
• remove epk sign from message payload (#20926) (36b95fa)
• Remove non-protocol contracts from public setup allowlist (#21154) (79156c4)
• rollup mana limit gas validation (#21219) (79156c4)
• run AVM NAPI simulations on dedicated threads instead of libuv pool (#21138) (79156c4)
• run low priority eviction rule on chain_pruned (#20687) (43caf7c)
• sequencer: add SEQ_MAX_TX_PER_CHECKPOINT config (backport #21016) (#21115) (64ab33f)
• sequencer: set block building limits from checkpoint limits (backport #20974) (#21055) (46943b6)
• slasher: make slash grace period relative to rollup upgrade time (#20942) (3cdca29)
• standby mode for prover broker (#21098) (79156c4)
• suspend sentinel during escape hatch (#20471) (639368d)
• tcmalloc enabled in docker images (#20644) (b87c8ae)
• trim attestations to the minimum required length (#20591) (43caf7c)
• Update L1 to L2 message APIs (#20913) (79156c4)
• use native crypto to compute p2p message ID (#20846) (fdd0d0d)
• Validate num txs in block proposals (#20850) (f3f5438)
• validator: add VALIDATOR_ env vars for independent block limits (backport #21060) (#21132) (d60df27)
• worker thread wallet (#20557) (639368d)
• World state history length is now defined in checkpoints (#20566) (639368d)

Bug Fixes

• (A-575) prevent checkpoint event spam in L2BlockStream on restart (#20791) (fdd0d0d)
• (A-643) add buffer to maxFeePerBlobGas for gas estimation and fix bump loop truncation (#21323) (79156c4)
• adapt chonk proof compression for v4 Translator layout (#21067) (79156c4)
• add -g0 to zig presets to eliminate 11GB debug info bloat (backport #21071) (#21085) (da8f7b8)
• allow compiling mixed (contract + noir script) aztec project (#20428) (83ea202)
• archiver: enforce checkpoint boundary on rollbackTo (#20908) (f3f5438)
• async blob (#20559) (639368d)
• async dispose() lint rule (#20587) (639368d)
• async world state cleanups (#20578) (639368d)
• aztec-nr: account for AES PKCS#7 padding in message plaintext length (#20840) (67a908d)
• aztec-up: install noir-profiler alongside nargo (#20896) (f3f5438)
• bump lighthouse consensus client v7.1.0 -> v8.0.1 (#21170) (79156c4)
• charge 3.6M for epoch verification (#20765) (fdd0d0d)
• ci: insufficient parallelism in merge-queue-heavy (#20613) (5bfbd67)
• ci: preserve both attempt logs when retrying flaky tests (#20439) (639368d)
• ethereum: check timeout before consuming nonce in L1TxUtils (#20501) (639368d)
• ethereum: remove viem NonceManager to fix nonce gap after failed sends (#20819) (fdd0d0d)
• evicted transactions could reappear after a node restart (#20773) (fdd0d0d)
• Fix checkpoint invalidation test (#20579) (639368d)
• Fix the epoch long proving test (#20617) (6414d9b)
• flag stripping error (#20655) (b87c8ae)
• getVotes return empty instead of stale data (#20756) (fdd0d0d)
• handle scientific notation in bigintConfigHelper (#20929) (0ed0a06)
• hodgepodge of small things (#20720) (43caf7c)
• increase waitForTx timeout in epochs_invalidate_block test (#20603) (639368d)
• limit number of threads when verifying server-side proofs (#20818) (fdd0d0d)
• limit parallel blocks in prover to max AVM parallel simulations (#21320) (79156c4)
• log: do not log validation error if unregistered handler (#21111) (79156c4)
• logging of class instances (#20807) (3cdca29)
• node: fix index misalignment in findLeavesIndexes (#21327) (79156c4)
• node: sync ws before simulating public calls (#20499) (639368d)
• omit bigint priceBumpPercentage from IPC config in testbench worker (#21086) (79156c4)
• p2p: fix compress option in file store and enable for tx uploads (#20605) (639368d)
• p2p: remove default block handler in favor of block handler (#21105) (79156c4)
• p2p: report most severe failure in runValidations (#21185) (79156c4)
• p2p: wait for GossipSub mesh formation before sending txs in e2e tests (#20626) (fdd0d0d)
• pass CARGO_REGISTRY_TOKEN to CI release environment (9598e7e)
• pass log level to AVM simulator (#20762) (fdd0d0d)
• pxe native prover log level (#20724) (fdd0d0d)
• Reduce tx hash conversions inside tx pool (#20829) (fdd0d0d)
• separate rejected and aborted proving jobs (#20777) (fdd0d0d)
• sequencer: fix log when not enough txs (#21297) (79156c4)
• Set Aztec slot duration as a multiple of the Ethereum slot duration (#20608) (dedf440)
• set PXE sync chain tip to proposed for scenario bot (#20530) (639368d)
• Simulate gas in n tps test. Set min txs per block to 1 (backport #21312) (#21329) (79156c4)
• spartan: wire SEQ_L1_PUBLISHING_TIME_ALLOWANCE_IN_SLOT env var (#21017) (2776313)
• stringify all bigints in pino-logger (#20303) (639368d)
• track last seen nonce in case of stale fallback L1 RPC node (#20855) (83ea202)
• txe: committing after txs (#20714) (83ea202)
• txpool: cap priority fee with max fees when computing priority (#21279) (79156c4)
• underflow in snapshot synch (#20780) (fdd0d0d)
• update dependencies (#20997) (79156c4)
• update MAX_EVENT_SERIALIZATION_LENGTH and re-enable TXE tests in CI (backport #21020) (#21027) (b7f2353)
• Use async poseidon (#20826) (fdd0d0d)
• use ci3_labels_to_env.sh for ci-external label (#20597) (3efb1d9)
• use native sha256 to speed up proving job id generation (#21292) (79156c4)
• validator: wait for l1 sync before processing block proposals (#21336) (79156c4)
• write pointers for environ_get and environ_sizes_get functions (#20902) (f3f5438)

Miscellaneous

Documentation

• add docs on state vars docs re packing in structs (#20747) (3cdca29)
• clarifying Noir fields vs struct fields in event metadata (#21172) (79156c4)
• document RevertCodeEnum phases and add 120-char line width rule (#20751) (83ea202)
• minor clarification (#20788) (fdd0d0d)
  This PR was generated with Release Please. See documentation.

[aminsammara]

Superseded by the human-authored release PR (incoming). Closing this auto-opened release-please PR because its CHANGELOG was missing the backport-to-v4 stdlib fix (#23505) and duplicated the prover entry.