TCG140-4-v1.023 (Release date 2025-02-19)
   - Fixed a bug related to the 'unumf' command

TCG140-4-v1.022 (Release date 2025-01-14)
   - MQTT: Added a setting for Relays state on connection loss. When the connection with the broker is lost, the relays are set according to the configured setting.
   - MQTT: Optimized error messages.
   - MQTT: The "Server" field length has been increased from 63 to 127 characters.
   - MQTT: Fixed a bug related to disabling MQTT and disconnecting from the server.
   - Website: Optimization related to caching of the index.htm file.

TCG140-4-v1.021 (Release date 2024-10-24)
  - Added support for MQTT Subscribe
  - Included relays in MQTT Publish
  - Extended field length for email addresses, username, and password to 127 characters 

TCG140-4-v1.019 (Release date 2024-08-30)
  - Calibration optimization

TCG140-4-v1.018 (Release date 2024-05-9)
  - status r1, status r2, status r3 and status r4 HTTP comands fixed

TCG140-4-v1.017 (Release date 2024-01-19)
  - Option for user header in HTTP Post added

TCG140-4-v1.016 (Release date 2024-01-10)
  - HTTP Post optimization

TCG140-4-v1.015 (Release date 2023-12-12)
  - Added option to use Server Name Indication (SNI) for HTTPS post

TCG140-4-v1.014 (Release date 2023-09-25)
  - HTTP Post optimization

TCG140-4-v1.013 (Release date 2023-08-15)
  - Firmware update optimization
  - SMS commands optimization

TCG140-4-v1.012 (Release date 2023-07-17)
   - Mobile network connection reset optimization

TCG140-4-v1.011 (Release date 2023-05-12)
   - SMS commands optimization

TCG140-4-v1.010 (Release date 2023-05-03)
   - SMS setup and commands optimization

TCG140-4-v1.009 (Release date 2023-04-25)
   - SMS setup and commands optimization

TCG140-4-v1.007 (Release date 2023-03-22)
   - display sensor values with 3 decimal places
   - added a notification in case of a sensor lost

TCG140-4-v1.006 (Release date 2022-12-08)
   - system web page optimization

TCG140-4-v1.005 (Release date 2022-10-21)
   - firmware update optimization

TCG140-4-v1.004 (Release date 2022-09-26)
   - data connection optimization

TCG140-4-v1.002 (Release date 2022-06-23)
   - relays setup optimization