For a one-time project, the Web Mini may work fine. For projects that you need to maintain over longer periods and if the budget allows it, I recommend choosing an edition that includes a renewable maintenance subscription.
The maintenance subscription costs 25% of a new license price per year, and it's recommended since it is the only way to receive new versions with security fixes, browser compatibility fixes, new features, and support.
From time to time, a new version of some browsers contains a quirk that prevents some features from working. It’s not something you will see with every new browser release, but it happens. The subscription serves as insurance in these cases.
If you don’t have a maintenance subscription, you will need to purchase a new license to get the latest release.