To update an old copy of Grok TiddlyWiki to this version without losing your takeaway progress and other customizations, drag the following links into your wiki: Grok TiddlyWiki version 2.0.0; TakeAway version 1.3.0; TiddlyRemember version 1.3.6. Sections, takeaways, exercises, and any other tiddlers that you have changed will be untouched during an upgrade.
Please note: If your old wiki is from a Grok TiddlyWiki version less than 2.0, you should first upgrade its TiddlyWiki version at https://tiddlywiki.com/upgrade. The current version of GTW requires a newer version of TiddlyWiki to work than was bundled with those older GTW versions, so your wiki will look broken if you aren't on the latest TiddlyWiki.