Bitcoin ABC 0.20.6 Release Notes

Bitcoin ABC version 0.20.6 is now available from:

https://download.bitcoinabc.org/0.20.6/

This release includes the following features and fixes:

• hdmasterkeyid in getwalletinfo has been deprecated in favor of hdseedid. hdmasterkeyid will be removed in V0.21.
• hdmasterkeyid in getaddressinfo has been deprecated in favor of hdseedid. hdmasterkeyid will be removed in V0.21.
• The inactivehdmaster property in the dumpwallet output has been deprecated in favor of inactivehdseed. inactivehdmaster will be removed in V0.21.
• Building from source now requires python 3.5 or greater

‘label’ and ‘account’ APIs for wallet

A new ‘label’ API has been introduced for the wallet. This is intended as a replacement for the deprecated ‘account’ API. The ‘account’ can continue to be used in v0.20 by starting bitcoind with the ‘-deprecatedrpc=accounts’ argument, and will be fully removed in v0.21.

The label RPC methods mirror the account functionality, with the following functional differences:

• Labels can be set on any address, not just receiving addresses. This functionality was previously only available through the GUI.
• Labels can be deleted by reassigning all addresses using the setlabel RPC method.
• There isn’t support for sending transactions from a label, or for determining which label a transaction was sent from.
• Labels do not have a balance.

Here are the changes to RPC methods:

Deprecated Method	New Method	Notes
getaccount	getaddressinfo	getaddressinfo returns a json object with address information instead of just the name of the account as a string.
getaccountaddress	n/a	There is no replacement for getaccountaddress since labels do not have an associated receive address.
getaddressesbyaccount	getaddressesbylabel	getaddressesbylabel returns a json object with the addresses as keys, instead of a list of strings.
getreceivedbyaccount	getreceivedbylabel	no change in behavior
listaccounts	listlabels	listlabels does not return a balance or accept minconf and watchonly arguments.
listreceivedbyaccount	listreceivedbylabel	Both methods return new label fields, along with account fields for backward compatibility.
move	n/a	no replacement
sendfrom	n/a	no replacement
setaccount	setlabel	Both methods now: <ul><li>allow assigning labels to any address, instead of raising an error if the address is not receiving address.<li>delete the previous label associated with an address when the final address using that label is reassigned to a different label, instead of making an implicit getaccountaddress call to ensure the previous label still has a receiving address.

Changed Method	Notes
addmultisigaddress	Renamed account named parameter to label. Still accepts account for backward compatibility if running with ‘-deprecatedrpc=accounts’.
getnewaddress	Renamed account named parameter to label. Still accepts account for backward compatibility. if running with ‘-deprecatedrpc=accounts’
listunspent	Returns new label fields. account field will be returned for backward compatibility if running with ‘-deprecatedrpc=accounts’
sendmany	The account named parameter has been renamed to dummy. If provided, the dummy parameter must be set to the empty string, unless running with the -deprecatedrpc=accounts argument (in which case functionality is unchanged).
listtransactions	The account named parameter has been renamed to dummy. If provided, the dummy parameter must be set to the string *, unless running with the -deprecatedrpc=accounts argument (in which case functionality is unchanged).
getbalance	account, minconf and include_watchonly parameters are deprecated, and can only be used if running with ‘-deprecatedrpc=accounts’