Hi EDL,
I'm happy to announce that the product now takes advantage of a non-relational database. The choice was IndexedDB, which is a non-relational engine.
In short, IndexedDB ensures better compatibility with modern browsers. However, if you are interested in knowing more about the technology and the process for this move, we invite you to read this blog post authored by one of the engineering minds who tackled this challenge.
Thanks again for your participation!