We are currently maintaining the process in this google doc:Please refer to the Release Process Page.
You may also see the working document over here:
https://docs.google.com/document/d/1MczLMajRzu6l2cE28mowRVYJI450n3eDRr62pdQaGbk/edit?usp=sharing
Page Comparison
Manage space
Manage content
Integrations