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@@ -1,3 +1,83 @@
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+#V1.3.2 (2025-08-23 - 2025-09-30)
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+
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+**New Features**
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+- Added historical record chart display for dry contact type sensors.
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+- Added the display of total input information for three-phase type PDUs.
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+- Added the display of apparent power for both three-phase and single-phase type PDUs.
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+- Added an MQTT interface for per-phase threshold exceedance alarms.
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+- Added over-limit action protection for L1, L2, and L3.
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+
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+**Bug Fixes**
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+- Fixed the bug where dry contact sensor alarms are ineffective.
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+- Fixed the error in threshold distribution during the startup of three-phase PDUs.
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+
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+**Optimizations**
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+- Optimized the sensor information display interface.
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+
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+------------------------------------------------------------------------------
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+
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+#V1.3.1 (2025-07-21 - 2025-08-22)
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+
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+**New Features**
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+- Added a pop-up display for alarm information on the small screen, showing up to 10 recent alarms.
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+
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+**Bug Fixes**
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+- Fixed the issue of MAC address jumping during PDU startup.
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+- Fixed the inaccurate total power consumption statistics for each phase in the scenario of three-phase input and single-phase output.
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+- Fixed the sensor alarm translation errors.
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+- Fixed the issue where IPv4 settings cannot be changed on the web interface when DHCP fails to allocate an IP address.
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+- Fixed the false red light initialization alarm on the small screen status indicator.
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+
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+**Optimizations**
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+- Adjusted the overall threshold minimum to 0.05.
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+- Adjusted the Websocket queue size to reduce program memory usage.
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+- Optimized the 4G module SIM card hot-swapping function (requires hardware support for the 4G card slot).
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+- Optimized the switching logic for 4G, WIFI, and wired network ports.
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+- Modified channel scanning to repeat twice to prevent board loss due to serial communication failures.
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+
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+------------------------------------------------------------------------------
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+
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+#V1.3.0 (2025-06-27 - 2025-07-20)
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+
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+**New Features**
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+- Added SNMP overall power information over-limit alarm functionality.
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+- Introduced memory detection tool for enhanced system diagnostics.
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+- Implemented batch writing of MAC addresses from CSV files for product information configuration.
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+- Enhanced SNMP protocol support with power and sensor over-limit alarm information interfaces.
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+- Included Malaysia project sensor configuration database.
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+
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+**Bug Fixes**
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+- Fixed device cascading read/write instruction issues causing serial port failure.
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+- Resolved memory leaks caused by HTTP requests.
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+- Fixed memory leak issues in the MQTT WebSocket interface.
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+- Corrected the issue where control panel data still appeared after going offline.
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+- Addressed NTP memory leak problems due to unrecovered thread creation.
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+- Fixed system crashes caused by reading circuit breaker and channel information during cascading.
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+- Resolved the issue of the system recording to the database even when the control board was unreadable.
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+- Corrected the display of multiple historical records for dry contact sensors.
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+- Fixed the bug where the current reading might be zero.
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+- Addressed the issue where the current could not be read.
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+- Fixed the SMTP toggle defect on the web interface.
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+- Resolved the issue where multiple MQTT servers could only push to one server.
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+- Corrected the garbled text issue when multiple MQTT servers published simultaneously.
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+- Fixed the issue where 4G WebSocket might cause memory leaks.
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+- Resolved the initial 4G startup issue where MQTT could not connect and send messages.
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+- Fixed the problem where reading power information might return zero.
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+
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+**Optimizations**
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+- Adjusted the overall threshold minimum to 0.05.
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+- Enhanced cascading functionality.
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+- Modified the MQTT protocol topic definition to merge all channels and sensors into one package, reducing network latency.
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+- Adjusted the frequency of power information, sensor, network status, and device information transmissions.
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+- Improved the MQTT client ID generation to be random.
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+- Optimized MQTT server information modification to automatically disconnect.
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+- Enhanced the MQTT reconnection mechanism with ping connection status detection.
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+- Streamlined the web interface for MQTT modifications.
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+- Improved multi-network card switching functionality.
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+- Optimized the subscription instruction sending method to subscribe after a successful connection.
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+
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+------------------------------------------------------------------------------
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+
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# V1.2.0 (2025-06-16 - 2025-06-26)
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**New Features**
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@@ -344,4 +424,4 @@
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- Merged RAM/ROM checks into a unified interface.
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- Optimized temperature/humidity sensor threshold retrieval logic.
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- Updated Web to version 9.28.
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-- Added null checks to prevent out-of-bounds crashes.
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+- Added null checks to prevent out-of-bounds crashes.
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