Smart bulb randomly turns on

[pizzinini]

For more details see these posts:

Hub Firmware 17.11 Release Notes

Due to the lengthy nature of this SmartThings Hub update, we are going to be performing this update in a different fashion than normal and rolling the update out in groups over a number of days. We are also going to share a bit more technical detail than usual - feel free to post your questions below and we will do our best to answer all of them. First of all, this update will be rolled out over multiple days. You will receive an email at least 24 hours prior to the update being applied to your Hub; the email will contain a time window when your update is expected to be applied. Please refrain from asking when the update will be available for your Hub - due to the quantity of updates, we won’t be able to respond to these requests. To verify your Hub has updated, please see Is my Hub’s fir…

" Lights will turn on automatically after they update so you may not want to enable automatic updates."

https://support.smartthings.com/hc/en-us/articles/215394303-ZigBee-OTA-firmware-updates