The hub update to 20.17 was supposed to be between 1st Feb 2018 and 2nd Feb 2018, well at least that’s what the email I received said. No guarantees that’s when it actually happened though, i don’t keep that close an eye on the updates as they have been fairly stable for me.
As my device is working, then getting your Smartthings Outlet on the latest firmware should not do any harm.
I have never manually updated the power outlet and don’t know how to, so assume it has been doing it over the air. The SmartThings outlet is a ZigBee device and has the ability to do over the air firmware updates.
Would remove power from smart outlet.
On the web site
Go to My Hubs
In the page that is open, select View Utilities
Under the ZigBee Utilities.
Select the “Allow OTA” option
Select the “Allow Unsecure Rejoin (Most Compatible)” option. May help to troubleshoot if it is still not working.
Plug the power outlet back in and power on, don’t connect any thing to it. (hopefully that should speed up update).
No idea how long it will take, go and have a cuppa or a large glass of red.
For the Aotec devices, if you need to update the firmware, I think they are ZWave devices, which does not at the moment support OTA updates. So you will need to go to the Aotec Website and follow the instructions to update.