To switch to the OLD UI click on the following link: OLD UI
The setting is saved in the browser and you can use ContextMinds as you´re used to, you´ll stay in the old version.
If you like to go back to the NEW UI, click on the following link: NEW UI. This will set it back to the new version in the browser.
Please always close the original window with the original UI design version to avoid data loss later during work.