v3.4.3

• In get_transfers walletd's method error is returned if from_height is larger than to_height or top block height.
• WALLET_FILE_EXISTS (209) is correctly returned when walletd is instructed to overwrite an existing wallet.
• Fixed a bug when wrong error message was displayed when passing some invalid addresses to walletd's create_transaction RPC method.
• LMDB virtual memory usage by bytecoind and walletd reduced from fixed 512Gb to approx. actual blockchain database/wallet cache size.
• walletd will not undo sync progress, if connected node is behind wallet state and behind latest hard checkpoint. It will wait for a node to advance to a checkpoint.
• Wallet cache now takes much less space, especially for wallets with small number of transactions.
• For all TCP sockets keep_alive option is now set after they are created (with default timeouts for each system, common value is 2 hours), solving very rare bug when there would be no reply to long poll ever for external services (like block explorers) calling from remote machines.
• All paths now subject to substitution of ~ (Mac & Linux) and %appdata% (Windows). Also, on Linux and Max backslash is no more considered path separator.

API tweaks

• JSON numbers are interpreted according to spec throughout API, for example 10.01E2 is now good value for height (1001). This helps integration with some weird languages.
• Better error messages throughout API when required parameters are not specified.
• More strict JSON RPC - excess fields on top level are no more allowed in requests.
• bytecoind's binary version of sync_blocks now uses separate zero overhead response to save traffic during sync.

Incompatible API changes

• bytecoind's getblocktemplate, submitblock and JSON versions of sync_blocks and sync_mempool now require private authorization. This helps with preventing excess load on public nodes.
• deprecated field outs_count in bytecoind.get_random_outputs removed.