Samsung SmartThings Hub 2018 and 2015 model firmware version 27.6 will be releasing to customers starting Monday, August 26th. This release includes firmware updates for various zigbee devices and other bug fixes and stability improvements.
Your Hub will briefly go offline as it reboots and applies the update; most users will experience less than one minute of downtime. Visit https://community.smartthings.com/t/hub-firmware-release-notes-27-6/171189
for more information. We will update the status page once the release has been completed.