Chrome extensions should automatically update but this doesn't happen sometimes, and you can unknowingly be on an older version of eesel. Here's how you can update all your chrome extensions, including eesel, to be on the latest version.
1. Go to chrome://extensions
2. Toggle Developer mode on
3. Update all extensions
4. You're done, we think?
If you're updating from a very old version, some things may break. If that's the case, please remove and re-install the extension. It'll just take a few seconds, just like the first time :)