The Long Term Support Candidate LTC-150 has been promoted to ChromeOS LTS-150 and is rolling out to most ChromeOS devices. The current version is 150.0.7871.256 (Platform Version: 16700.66.0).
If you are currently on the ChromeOS Long Term Support (LTS) channel (and not pinned to 144), your devices will automatically update to ChromeOS LTS 150.
Release notes for LTS-150 can be found here
Andy Wu
Google ChromeOS