MySQL 9.0 CE + HeidiSQL 12.8

Hello there - Does HeidiSQL 12.8 not support MySQL 9.0 CE edition? I'm asking this since it didn't let me change the value of transaction_isolation property from the UI. Instead, it said, 'couldn't find the property in internal mapping'. Thank you!

If you can connect to your MySQL v9 server, then I'd say HeidiSQL supports that version.

That message after editing a variable is an internal issue in HeidiSQL, and this happens with older servers as well.