I recently upgraded our project to 7.2, and suddenly all our grids stopped allowing text selection within individual cells (this is normally controlled by 'viewConfig: { enableTextSelection: true }'). The code did not appear to change in view.Table between 7.1 and 7.2, so we started looking elsewhere. My co-worker noticed 'x-unselectable' was placed on the Window div, as well as all sub-components. Removing this brought back text selection.

This can be seen in Ext's Kitchen Sink window example. In each of the links below, you can select the text within the Window for 7.0 and 7.1, but not in 7.2:

7.0 (works): https://examples.sencha.com/extjs/7....dow-variations
7.1 (works): https://examples.sencha.com/extjs/7....dow-variations
7.2 (doesn't work): https://examples.sencha.com/extjs/7....dow-variations

I've run this on Chrome (81.0.4044.129), Firefox (76.0.1) and the latest Safari, all with the same results. I'm guessing this is a bug and not a new feature? If a new feature...how would we disable it?