TCW242-v3.018 (Release date: 2026-07-03)
   - SNMPv3: Fixed a bug affecting trap transmission.
   - SNMPv3: Optimized connection process.
   - SNMP: Added a new MIB file.
   - GUI: Optimized web interface.

TCW242-v3.017 (Release date: 2026-06-26)
   - HTTPS: Added Custom server certificate support.
   - Logger: Fixed CSV formatting issues.

TCW242-v3.015 (Release date: 2026-06-04)
   - TLS: Bug fix regarding TLS session establishment with certain servers.
   - HTTP/HTTPS server: Maximum number of open sockets is now 3.

TCW242-v3.014 (Release date: 2026-05-14)
   - MQTT: Expanded JSON payload structure, allowing multiple parameters per topic.
   - MQTT: Topic names "value" and "state" shortened to "v" and "s" for payload optimization.
   - MQTT: Improved and optimized web interface page.
   - Logger: Fixed bugs in "Download full log" and status reporting for manual upload actions.
   - TLS: Optimized send/receive performance.
   - ADC: Optimized analog-to-digital converter readings.
   - Alarms: Fixed a bug in the setup related to the second parameter configuration.

TCW242-v3.013 (Release date: 2026-04-20)
   - MQTT: Added support for Client and Server certificates.
   - HTTP POST (XML/JSON): Added support for customizable HTTP headers.
   - HTTP POST (CSV): Added support for customizable HTTP headers.
   - HTTP POST (CSV): Added optional MAC address suffix for the destination URL.
   - HTTP POST (CSV): Added optional internal CSV file header (Device metadata) and EOF (End Of File) marker.
   - Security & UI: Increased maximum field lengths for passwords and remote server links (URLs).

TCW242-v3.011 (Release date: 2025-11-13)
   - MQTT: Fixed a bug affecting discrete channel value publishing.

TCW242-v3.009 (Release date: 2025-01-07)
   - MQTT: Increased server field length to support up to 127 characters.

TCW242-v3.008 (Release date 2024-12-18)
   - Important: Since version 3.005, the logger structure has changed; 
     If you are updating from version 3.004 or earlier, previous logged data will be deleted upon firmware update.

   - MODBUS TCP/IP: Updated address table to include MODBUS RTU relays and Watchdog state.
   - SNMP: Added support for Watchdog state.
   - SNMP: New MIB file incorporating the above changes.
   - SNMP: Fixed a bug related to OIDs.
   - MQTT: Added "Relay state on connection loss" functionality in MQTT Subscribe mode.
   - MQTT: Optimized ping handling.
   - General: Optimized microcontroller cache handling.

TCW242-v3.007 (Release date 2024-11-08)
   - Important: Since version 3.005, the logger structure has changed; 
     If you are updating from version 3.004 or earlier, previous logged data will be deleted upon firmware update.

   - Added MQTT Subscriber status display
   - Increased email address length – email address fields now support up to 127 characters
   - Bug Fix – resolved an issue where Relays Topic Name and Modbus Relays Topic Name were not saving to flash memory
   - TST300v3 support added

TCW242-v3.006 (Release date 2024-09-30)
   - Important: Since version 3.005, the logger structure has changed; 
     If you are updating from version 3.004 or earlier, previous logged data will be deleted upon firmware update.

   - Added support for DynDNS with TLS.
   - Added MQTT subscribe functionality.

TCW242-v3.005 (Release date 2024-08-08)
   - Important: Logger structure has changed; previous logged data will be deleted upon firmware update.

   - Added functionality for Modbus relays.
   - Updated user interface.
   - Added SNMP Trap descriptions.
   - Added support for TDO340.

TCW242-v3.004 (Release date 2024-04-29)
   - DNS client max. hostname length increased from 32 to 64 symbols

TCW242-v3.003 (Release date 2024-03-28)
   - framework optimization

TCW242-v3.002 (Release date 2024-01-05)
   - added Watchdog functionality

TCW242-v3.001 (Release date 2023-11-14)
   - added HTTPS server support

TCW242-v1.005 (Release date 2023-02-07)
   - default Hostname is changed

TCW242-v1.004 (Release date 2023-01-12)
   - added SMTP support
   - Alarms optimization
   - MIB file is changed

TCW242-v1.003 (Release date 2022-10-03)
   - Modbus RTU optimization
  
TCW242-v1.002 (Release date 2022-09-26)
   - JSON and XML files optimization
   - Modbus RTU optimization