The Chrome OS Dev Channel has been updated again with its fifth and likely final Chrome 69 build. The new build is 69.0.3497.14 (Platform version: 10895.5.0) and it is already rolling out to eligible devices in the channel. The update comes just a few days ahead of the release of Chrome 68 to the Chrome OS Stable Channel, which in turn would mean that Chrome 69 (likely this build) will be promoted to the Beta Channel next week.
For those that are new to Chrome OS, the Dev(eloper) Channel is considered the alpha build channel where new features are introduced and tested. These builds tend to be pretty buggy and unstable and are not recommended for use on your daily driver Chromebook.