Bitcoin ABC 0.21.0 Release Notes

Bitcoin ABC version 0.21.0 is now available from:

https://download.bitcoinabc.org/0.21.0/

This release includes the following features and fixes:

• The RPC getrpcinfo returns runtime details of the RPC server. At the moment it returns the active commands and the corresponding execution time.
• ischange field of boolean type that shows if an address was used for change output was added to getaddressinfo method response.
• Bump automatic replay protection to Nov 2020 upgrade.
• Re-introduction of BIP9, info available from the getblockchaininfo RPC.
• Miner infrastructure funding plan available via BIP9.
• Various bug fixes and stability improvements.

New RPC methods

• getnodeaddresses returns peer addresses known to this node. It may be used to connect to nodes over TCP without using the DNS seeds.

Network upgrade

At the MTP time of 1589544000 (May 15, 2020 12:00:00 UTC) the following behaviors will change:

• The default for max number of in-pool ancestors (-limitancestorcount) is changed from 25 to 50.
• The default for max number of in-pool descendants (-limitdescendantcount) is changed from 25 to 50.
• OP_REVERSEBYTES support in script.
• New SigOps counting method (SigChecks) as standardness and consensus rules.