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Bitcoin ABC 0.29.9 Release Notes

Bitcoin ABC version 0.29.9 is now available from:

https://download.bitcoinabc.org/0.29.9/

This release includes the following features and fixes:

  • The scantxoutset RPC now returns a coinbase for each unspent output to indicate whether this is a coinbase output or not.
  • A new RPC, submitpackage, has been added. It can be used to submit a list of raw hex transactions to the mempool to be evaluated as a package using consensus and mempool policy rules. These policies include package CPFP, allowing a child with high fees to bump a parent below the mempool minimum feerate (but not minimum relay feerate).
    • Warning: successful submission does not mean the transactions will propagate throughout the network, as package relay is not supported.
    • Not all features are available. The package is limited to a child with all of its unconfirmed parents, and no parent may spend the output of another parent.
    • This RPC is experimental. Its interface may change.