Check this article periodically for Marketo Product updates that impact Product Docs.
Q4 - 2018
As of October 5, 2018, Sales Engage will no longer have a Command Center section in the tree:
The Command Center tab itself will remain.
As of the upcoming Summer '18 Release, the following Web Personalization features will no longer be available:
When creating web segments, you will no longer be able to define your segment by specific visits.
In the Web Campaign editor, you will no longer be able to select notify (via email) as an option.