Symbio updates

When we improve the Symbio product itself, write it down here — and that is the whole job. The moment you record it, it lands on every custom build's board by itself, and any company that starts later picks up everything already shipped. Companies on a template package need nothing: they run our product as it stands.

The product opened these itself, because it changed. Nobody has been told about them yet — an improvement only travels once somebody has written what it means. Say that here and send it out.