It is not possible to revert back to an older version of Coding Awbie, however, you can access and play old levels of the game using the gear icon at the top and selecting Settings -> Classic.
The new Coding Awbie version has 56 new levels and 5 new worlds! We encourage you to play through all the new levels, starting from 1-1. These are brand new levels, with lots of new challenges to solve and secrets to find.
In case you want to skip through the new levels, we've added the option "Unlock Tokens" to your account to help you get back to where you left off. You can see your Unlock Token counter in the bottom right of your map view. To use them, tap on a level, then tap on the Fast Forward button.
You can find a detailed explanation of how to use Unlock Tokens on page 26 of this manual:
Please note that levels 1-3 and 1-5 are not skippable, as they are important in presenting concepts introduced with our new update.