v1.2.0

1.2.0 (2026-06-12)

This pre-release focuses on Unzen fork support on Taiko-Hoodi network, zk gas accounting updates, RPC/debugging improvements, and node reliability fixes.

Hoodi Unzen Fork Time

• Set Hoodi Unzen fork time to 2026-06-18 13:00:00 UTC.
• Unix timestamp: 1781787600.

Flag Changes

• No CLI flag changes in this release.

Highlights

• Added and updated Unzen fork configuration:

  • Activate Unzen from genesis on Masaya.
  • Remove the special Masaya zk-gas schedule.
  • Set the Hoodi Unzen fork time.
  • Order hardforks before fork ID generation for more consistent fork metadata.

• Improved Unzen zk gas accounting:

  • Include TX_INTRINSIC_ZK_GAS in Unzen zk gas accounting.
  • Match precompile zk-gas multipliers by full address.
  • Set p256verify zk gas multiplier to 163.
  • Lower the modexp zk gas multiplier to 154.
  • Recalibrate Unzen zk gas multipliers.
  • Apply canonical BLS12 precompile addresses and add CLZ opcode support.

• Improved RPC and debugging behavior:

  • Gate batch lookup results by network.
  • Add a tx-list execution witness debug RPC.
  • Use serde aliases for block_id, build_payload_id, and related RPC fields for better compatibility.

• Fixed reliability issues:

  • Validate Unzen header difficulty on the newPayload path.
  • Decouple the proof-history sidecar from the reth ExEx WAL.
  • Use the on-disk tip as the historical initialization target.
  • Fail closed on proof-history anchor mismatches.

• Improved performance:

  • Remove Arc<Mutex<ZkGasMeter>> from the EVM hot path.
  • Meter zk gas directly in the interpreter path.

• Updated release workflow:

  • Publish taiko-reth alongside alethia-reth in Docker builds.

Features

• chainspec: activate Unzen from genesis + drop special zk-gas schedule for Masaya (#205) (157cefb)
• chainspec: set Hoodi Unzen fork time (#210) (aa1924a)
• eth: gate batch lookup results by network (#177) (9afd71f)
• evm: add TX_INTRINSIC_ZK_GAS to Unzen zk gas accounting (#180) (faee735)
• evm: key zk-gas precompile multipliers by full address (#201) (4dc60fb)
• evm: lower modexp zk-gas multiplier to 154 (#204) (ec1650b)
• evm: meter p256verify zk gas at 163 (#202) (408ca7c)
• evm: meter p256verify (RIP-7212) zk gas at 163 (408ca7c)
• evm: recalibrate Unzen zk gas multipliers (#187) (7679835)
• rpc: add tx-list execution witness debug RPC (#189) (04d232c)
• rpc: change serde rename to alias for block_id and build_payload_id (#186) (e4e09ec)
• rpc: change serde rename to alias for block_id and build_payload_args_id (e4e09ec)

Bug Fixes

• block: validate Unzen header difficulty on the newPayload path (#208) (4be394a)
• hoodi: disable unzen fork (61ca8d0)
• node: decouple sidecar from reth exex wal (#174) (0ed31d9)
• proof-history: decouple sidecar from reth exex wal (0ed31d9)
• proof-history: use on-disk tip for historical init target (4701f7c)
• rpc: fail closed on proof-history anchor mismatches (#207) (2dbf4ba)
• rpc: use on-disk tip for historical init target (#171) (4701f7c)

Chores

• auth: increase batch lookup window (#178) (85ba463)
• block: stop after finalized zk gas target (#190) (c242b0d)
• chainspec: disable Hoodi Unzen fork (#181) (61ca8d0)
• chainspec: order hardforks before fork id (#206) (a8e8ea8)
• chainspec: set Hoodi Unzen fork time to 2026-05-21 13:00 UTC (#176) (2ebe77c)
• deps-dev: sync Cargo.lock to 1.1.0 and drop redundant clones (#173) (a6782fe)
• evm: apply canonical BLS12 addresses + CLZ opcode (#203) (abc9833)
• sync Cargo.lock to 1.1.0 and drop redundant clones (a6782fe)

Code Refactoring

• network: remove pass-through wrappers and fold component-builder crates (#209) (ede5c81)
• node: remove pass-through wrappers and fold component-builder crates (ede5c81)

Performance Improvements

• evm: drop Arc<Mutex<ZkGasMeter>> from hot path (#182) (e42910b)
• evm: meter zk gas in interpreter path (#185) (6e17536)

Workflow

• docker-build: publish taiko-reth alongside alethia-reth (12553e4)
• repo: publish taiko-reth alongside alethia-reth (#179) (12553e4)

Reverted Commits

• block: stop after finalized zk gas target (#190) (#193) (26077f1)