Chrome Web Store to the previous version.
This page describes how to rollback an extension or theme ("item") to its previous version. Use this if you've released an extension update with bugs and want to rollback to the earlier version immediately.
How does a rollback work?
The Chrome Web Store rollback feature lets you switch back to the previous published version. A rollback requires a new version number under which the previous version of your extension will be re-published. For example, if the current version of your extension is 1.1 and the previous version was 1.0, you can rollback to the 1.0 version by providing a new version 1.1.