API changes

Versions (X.Y.Z) where Z == 0 e.g. 3.0.1 do NOT have API changes!

API changes 3.13.0

removed RemoteDeviceContext, because it only is a partial forwarder a proper forwarder should be made at frame level.
datastore get/setValues is removed, please use server.async_get/setValues instead.
datastore show a deprecation warning please use simData instead.
SimData/SimDevice have been updated

when using no_response_expected=, the call returns None
remove idle_time() from sync client since it is void
ModbusSerialServer new parameter “allow_multiple_devices” which gives limited multipoint support with baudrate < 19200 and a good RS485 line.
SimData / SimDevice are now integrated in the server (and will mid-term replace other datastores).

Revert wrong byte handling in v3.10.0 bit handling order is LSB-> MSB for each byte REMARK: word are ordered depending on big/little endian readCoils and other bit functions now return bit in logical order (NOT byte order)

Example: Hex bytes: 0x00 0x01 delivers False * 8 True False * 7

Hex bytes: 0x01 0x03 delivers True False * 7 True True False * 6

Python 3.9 is reaching end of life, and no longer supported. Depending on the usage the code might still work
Start*Server, custom_functions -> custom_pdu (handled by Modbus<x>Server)
Bit handling (e.g. read_coils) was not handling the bits in the correct order

Remove handler parameter from ModbusUdpServer
Remove loop parameter from ModbusSerialServer
Remove handler and allow_reuse_port from repl default config
Static classes from the constants module are now inheriting from enum.Enum and using UPPER_CASE naming scheme, this affects: - MoreData - DeviceInformation - ModbusPlusOperation - Endian - ModbusStatus
Async clients now accepts no_resend_on_retry=True, to not resend the request when retrying.
ModbusSerialServer now accepts request_tracer=.

ModbusTcpDiagClient is removed due to lack of support
Clients have an optional parameter: on_reconnect_callback, Function that will be called just before a reconnection attempt.
general parameter unit= -> slave=
move SqlSlaveContext, RedisSlaveContext to examples/contrib (due to lack of maintenance)
BinaryPayloadBuilder.to_string was renamed to BinaryPayloadBuilder.encode
on_reconnect_callback for async clients works slightly different
utilities/unpack_bitstring now expects an argument named data not string

helper to convert values in mixin: convert_from_registers, convert_to_registers
import pymodbus.version -> from pymodbus import __version__, __version_full__
pymodbus.pymodbus_apply_logging_config(log_file_name=”pymodbus.log”) to enable file pymodbus_apply_logging_config
pymodbus.pymodbus_apply_logging_config have default DEBUG, it not called root settings will be used.
pymodbus/interfaces/IModbusDecoder removed.
pymodbus/interfaces/IModbusFramer removed.
pymodbus/interfaces/IModbusSlaveContext -> pymodbus/datastore/ModbusBaseSlaveContext.
StartAsync<type>Server, removed defer_start argument, return is None. instead of using defer_start instantiate the Modbus<type>Server directly.
ReturnSlaveNoReponseCountResponse has been corrected to ReturnSlaveNoResponseCountResponse
Option –modbus-config for REPL server renamed to –modbus-config-path
client.protocol.<something> –> client.<something>
client.factory.<something> –> client.<something>

Added –host to client_* examples, to allow easier use.
unit= in client calls are no longer converted to slave=, but raises a runtime exception.
Added missing client calls (all standard request are not available as methods).
client.mask_write_register() changed parameters.
server classes no longer accept reuse_port= (the socket do not accept it)

Base for recording changes.