v3.4.2-beta-20190411

• Fixed problem when bytecoind stops responding via JSON RPC API.
• Tweaked random output distribution for mixins.
• The walletd daemon now better utilizes CPU during sync (cores use 100%, if available).
• During mining, the bytecoind daemon now prefers blocks received via submit_block API to other blocks, if difficulty are equal. This will slightly increase mining profitability for lucky miners.
• Added back create_transaction optimization for large wallets which was accidentally removed in version 3.4.1.
• Fixed bug when transaction size is 0 in all walletd API calls.
• Fixed bug when transaction timestamp is 0 in get_transaction of bytecoind API call for transaction, if it has been already included in the blockchain.
• Transaction fields prefix_hash and inputs_hash are now correctly set in various bytecoind API calls, if need_redundant_data is set.
• Improved command line processing in walletd, especially if wrong combination of options specified.
• Trezor and Ledger early support in walletd.

Incompatible API changes

• Deprecated binary_size field removed from transaction in all contexts. Please use the size field.