We’ve just released firmware 2.1.6 minor revision 1: this revision fixes a time zone bug for New Zealand users. Specifically, the original firmware 2.1.6 is incorrectly setting an upper bound for time zone to GMT+12:00 (whereas New Zealand has entered DST and is now in GMT+13:00). New Zealand users should update to this revision in order to fix the issue; other users do not need to update.
This is also to announce that we’ve posted instructions for OS 2.1 users to update to firmware 2.1.6 using an external programmer: https://opensprinkler.freshdesk.com/solution/articles/5000668400
The steps are fairly technical. If you own OS 2.1, and don’t want to perform update yourself, you can either send your controller back to us and we will flash it for you; or contact us for discounted price to upgrade to OS 2.3. Keep in mind that if you don’t need the new features in firmware 2.1.6 (e.g. flow sensor support and remote station support), it’s perfectly fine to stay with firmware 2.1.5. Thanks.