This morning, the Chrome team within Google has begun pushing out a minor update to Chrome OS for the majority of devices. The new update is build 60.0.3112.114 (Platform version: 9592.94.0) for those keeping score at home. It is coming to all devices except the Acer Chromebook 15 (CB3-532) and the Samsung Chromebook 3.
The update is predominantly made up of security fixes and bug fixes in the platform with a handful of feature enhancements too. The release notes on this update were vague as to what was addressed or fixed, but that is common for Chrome OS releases that are small in nature and midstream from the main releases every 6 weeks or so.