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CHANGELOG-2.0.x.md

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2.0.3

2.0.2

Improvements

RPC Improvements

  • Improve the performance of eth_getLogs.
  • Add a new RPC eth_getAccountPendingTransactions to get pending transactions by address, also return the first pending transaction's pending reason
  • Support WebSockets for eth APIs
  • Support block hash param for eth_call (EIP1898)
  • cfx_call, cfx_estimateGasAndCollateral, eth_call, and eth_estimate will respect from's balance if passed, if balance is not enough will return error. If from is not passed then use a random one, which's balance will be very big.

Transaction Pool Improvements

  • Set the minimum gas price to 1 GDrip by default for packing transaction

Storage Improvement

  • Improve the snapshot copy-on-write merging performance on XFS file systems.

Bug Fixes

  • Fix trace validity for transactions reverted in the top checkpoint.
  • Fix phantom trace length mismatch issue with failed transactions.
  • Fix a possible underflow crash in eth_estimateGas.

2.0.1

Improvements

RPC Improvements

  • Report error in cfx_getLogs and eth_getLogs if get_logs_filter_max_limit is configured but the query would return more logs. The previous behavior of cfx_getLogs was to silently truncate the result. The previous behavior of eth_getLogs was to raise an error when filter.limit is too low, regardless of how many logs the query would result in.
  • eth_gasPrice now estimate gas prices accurately instead of returning a fixed value.
  • Support phantom transactions and return correct fields in eSpace trace RPCs.
  • Add fields valid and createType for eSpace trace RPCs.
  • Add RPC rpc_methods to return all available methods and rpc_modules to return all RPC modules.
  • Add totalEspaceTokens in the response of cfx_getSupplyInfo.
  • Add local RPCs pos_start_voting, pos_stop_voting, and pos_voting_status. Check #2438 for details.

Configuration Improvements

  • Allow PoS voting nodes to have running backups. #2438 includes an introduction.
  • Add config parameter get_logs_filter_max_block_number_range for limiting the maximum gap between from_block and to_block during Core space log filtering (cfx_getLogs). Note: eSpace blocks correspond to epochs in Core space, so the range in eth_getLogs can be limited using get_logs_filter_max_epoch_range.
  • Add config parameter min_phase_change_normal_peer_count to set the number of normal-phase peers needed for phase change. The default value is set to 3 to make it more robust.
  • Add environment variable CFX_POS_KEY_ENCRYPTION_PASSWORD to configure pos key encryption password.

Transaction Pool Improvements

  • Allow pending transactions to be replaced unconditionally after 200000 epochs.

Bug Fixes

  • Fix an issue that phantom transactions may have the same hash. Now all phantom transactions have different hashes after this fix.
  • Create PoS log file directory if it does not exist.
  • Fix a panic issue when the node is started with stdout unavailable.
  • Fix an issue that an old transaction is not replaced according to a higher epoch_height.