Status update for WordPress 5.1.1
Incident Report for Pantheon Operations
Resolved
WordPress.org has released WordPress version 5.1.1. This release is classified as a security release for all previous versions of WordPress.[1] Pantheon has made the update available for one-click update in site dashboards. We urge all users to update all environments as soon as possible. Instructions for applying core updates can be found in our Support Center.[2] See release notes for more information on the resolved issues in this release; all users are urged to upgrade their sites as soon as possible.

[1] - https://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/
[2] - https://pantheon.io/docs/upstream-updates/
Posted Mar 12, 2019 - 20:36 PDT