We are upgrading our Ethereum Mainnet Nethermind infrastructure to v1.38.0. This release brings a broad set of improvements to node robustness, JSON-RPC correctness, and runtime performance.
During the maintenance window, brief interruptions to RPC availability may occur.
RPC Changes:
txpool_content / txpool_contentFrom / txpool_status — corrected response formatting and hex encoding inconsistencies eth_call / eth_estimateGas — now correctly honors the gas cap as the default gas value; the block gas limit ceiling no longer applies to RPC calls. Custom revert bytes are also stripped from the message field for cleaner error responses eth_feeHistory — correctness fixes to response data trace_transaction / trace_replayTransaction — fixed HTTP 500 errors being returned incorrectly eth_getBlockByNumber("pending") — now correctly returns non-null values for hash, nonce, and miner fields eth_simulateV1 — corrected error codes and messages for fee cap violations, insufficient funds, and intrinsic gas errors for improved compatibility