Release 6.5

• Support firmware versions 5.8 and 6.5.
• Support gzipped firmware (hex) files.
• Add the DHW block GPIO function.
• Provide the user more guidance on the use of the capability log feature.
• Handle more difficult situations when collecting a capability log.
• Add an MQTT topic for sending any command.
• Return the result of commands via MQTT if the caller specified a response topic.
• Provide status of the MQTT connection.
• Add commands to search and clear the log window.
• Provide a context menu for copying diagnostic results.
• Add basic detection of lost TCP connection.
• Error when boiler doesn't support MsgID 28 (Return water temperature): can't set "gui(returntemp)": can't use non-numeric string as operand of "-"
• Correct the data type of some messages, as reported in issue #21.
• Fix: New messages are not shown on the web interface when the websocket connects before the document is fully loaded.
• Fix: Losing first character on a telnet connection.
• Protect against misinterpreting a 5.X PS=1 line that was interrupted by a command as pre-5.X data.
• Adjust text to recognize that some OTGW boards now use 3.3V power.

Release 6.4

• Support firmware versions 5.7 and 6.4.
• Make the status area customizable by the user.
• Automatically update the web GUI graph.
• Parse summary reports to update the graph and status area even when regular message output has been suppressed by a PS=1 command.
• Add an option to resume logging following a summary report.
• Fix error from MQTT due to a malformed message report.
• Fix some errors that were thrown by the diagnostics window under certain circumstances.

Release 6.3

Support firmware versions 5.6 and 6.3.

Release 6.2

• Support firmware versions 5.5 and 6.2.
• Add functionality to collect and upload a "capability log".
• Support reading gzipped log files.

Release 6.1

• Support OTGW firmware versions 6.1 (PIC16F1847) and 5.4 (PIC16F88).

Release 6.0

Add support for alternative PIC: P16F1847

Release 5.3

• Reduce the subroutine nesting level, which could lead to spurious WDT resets in some unfavorable cases.

Release 5.2

• Handle Smart Power level changes while in monitor mode.
• Add support for boilers that generate unsolicited Medium/High power.
• Limit the validity of a CS command. A remotely set control setpoint expires after just over a minute. This is a safety feature to prevent runaway heating when the controlling program loses its connection, or crashes.
• Change the default voltage reference to 1.458V (4), which translates to a line voltage that lies closer to the midway point between the high and low voltage levels defined by the Opentherm specification.
• Change the voltage to detect a disconnected thermostat to 20.05V. The old value of 19.11V might give false positives due to component tolerances.
• Pass on the response for MsgID 9 and MsgID 100 from the boiler (or a downstream gateway) if it is a Read-Ack or Write-Ack and the OTGW doesn't have any active override itself.

Release 5.1

• Support OTGW firmware version 5.1.
• Corrections to transfer of EEPROM settings.
• Update websocket url regex to match underscores (pull request #15 by fliphess).
• Fix invalid html on status web page.

Release 5.0

• Support firmware 5.0
• Support firmware update from interface firmware 1.1 and diagnose firmware 1.2 with WiFi version of the OTGW.
• Show OTmonitor version and firmware version on the web GUI (issue #13).
• Maintain a command history
• Add an option to report message IDs in the log.
• Don't let connection attempts block the application.
• Cosmetic improvements.