====== Mervis RT Update Information for Unipi Platform ======

===== Mervis RT 2.7 (from Mervis RT 2.5) =====
  * Mervis IDE now allows updating Mervis RT even on OS versions 2.5 and 2.4.
  * During the update, it is important to check the network settings after opening the project in the new IDE:
    * In versions prior to 2.6, multiple network interface configurations were handled differently and cannot always be automatically migrated to the new version.
    * Only the variant where both network interfaces are joined in a bridge with a single IP configuration is migrated automatically.
    * It is also necessary to check the default gateway and DNS settings in the Networking section of the PLC configuration.
  * Proper attention must be paid during the actual RT update:
    * After the update, RT always performs an activation of the HW configuration stored in the device, but this is where a problem may occur.
    * If the device contains a configuration with two separate activated interfaces, everything will be migrated and will continue to work.
    * In the case of a bridged configuration, only the first interface will remain active after the update — the bridge configuration is not migrated. If your connection to the PLC is made through the second interface, you must first upload a configuration with separated interfaces using version 2.5, so that the second interface takes over the IP settings of the bridge, and **only then** perform the RT update. Otherwise, you will lose connectivity to the PLC and local access will be required.
  * After updating RT, upload the checked and verified HW configuration to the PLC.