Parity 1.2.1

New

• Options for more precise mining tuning (see below).
• Informative notification when block mined.
• HTTP signal on new work-package.
• Optimised database insertion for self-mined blocks.
• Short-circuit for local transaction gas-price approval.
• A number of issues related to mining have been fixed.

Mining options

• --author is now required for mining.
• --reseal-on-txs Specify which transactions should force the node to reseal a block. By default parity updates the seal on incoming transactions to reduce transaction latency. Set this option to none to force updates on new blocks only.
• --reseal-min-period Can be used to control how often a new pending block is generated if none is not selected on prior option.
• --work-queue-size Controls how many pending blocks to keep in memory.
• --relay-set Can be used to enable more strict transaction verification.
• --remove-solved Move solved blocks from the work package queue instead of cloning them. This gives a slightly faster import speed, but means that extra solutions submitted for the same work package will go unused.
• --notify-work Accepts a list of URLs that will receive a POST request when new work package is available. The body of the POST message is JSON encoded and has the same format as eth_getWork RPC response.

RPC

eth_getWork RPC response additionally includes the block number.

DAO soft-fork

DAO soft-fork control options have been replaced by the single --fork option which disables the soft-fork by default.