My electric app does not work after upgrade to 9.5.1

Hi all.

I am running small local emoncms system at Debian using MYSQL feeds for 1+ year.

After upgrade to 9.5.1 MyElectric app does not work and configuration is required however appropriate feeds were configured before upgrade.
Worst thing is that I am not able to select my feeds newly.
After a quick investigation I found this line : “use”:{“type”:“feed”, “autoname”:“use”, “engine”:“5,6”, “description”:“House or building use in watts”}, in myenergy.js and it looks like that engine 0 (MYSQL) is not supported anymore. I could be wrong I am not script expert.

What exactly does situation mean ? There is plan to cut support for MYSQL feeds at all ? Its bug ?

Thank you for explanation and advice.

Best regards