Very soon. We are doing staged release: first we are releasing the updated weather, which is already happening (because some of the new features of 2.1.9 depend on the availability of the new weather script); then UI/app (again, parts of 2.1.9 depends on UI support); then 2.1.9. Should be released within a week or so.
Sorry about the delay. As I said, we are doing staged release: new weather code is already deployed, new UI/app is being released (web UI has already been updated, Android and iOS app to follow today); then new firmware.
We will be away from Thursday July 17 to Monday July 21. Orders placed after 3pm EST July 17 will be shipped on Tuesday July 22. Thank you for your understanding!