Recently bitcoin core added an optional parameter to the sendrawtransaction call to limit intentional burns. It was implmented in this commit. This was released in Bitcoin Core 25.0.
Whereas there was no default limit prior to 25.0, the default is now set to 0, meaning sending non-zero values to OP_RETURN via sendrawtransaction will fail by default.
To keep pre-25.0 functionality intact, users of that RPC call (electrum servers, among others) will need to send the new maxburnamount parameter in the RPC call, which will also require sending the previously unset maxfeerate.
cculianu
commented
1 year ago
Recently bitcoin core added an optional parameter to the sendrawtransaction call to limit intentional burns. It was implmented in this commit. This was released in Bitcoin Core 25.0.
Whereas there was no default limit prior to 25.0, the default is now set to 0, meaning sending non-zero values to OP_RETURN via sendrawtransaction will fail by default.
To keep pre-25.0 functionality intact, users of that RPC call (electrum servers, among others) will need to send the new maxburnamount parameter in the RPC call, which will also require sending the previously unset maxfeerate.