This was mistakenly categorized as an incident. It was actually a scheduled maintenance notice about an update to all integration environments that was released earlier today (11/10/2017). The contents of this update are listed below. As always, please contact support if you need help.
A Release Candidate container image is available to our Magento Cloud customers using the integration environments. Updates to the following packages are included in this RC:
Additionally, the RC introduces a new MSSQL Server Driver for PHP which enables integration with MSSQL Server for PHP applications. The driver is a PHP extension that allows the reading and writing of MSSQL Server data from within PHP scripts.
If you are interesting in testing the RC in your integration environments the container can be activated by setting the type variable in the project's YAML file to 'type:php:7.0-rc'. If you wish to revert back to the original container version, change the type variable to the previous value.