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.