The security audit has a page
Security audit covers the WASA and the Safe to Host certificate you need before production: who may audit you, that the audit runs on your staging URL, that each platform you ship is audited separately, and when a code change requires a fresh audit.
The milestone pages no longer promise a certification step that does not exist
M1 to M4 each said to submit functional test cases in the sandbox for review, with a button to a screen that was never there. There is no per milestone submission. One exit process covers the whole integration, and all four pages now point at Going live for it.
The Health Tech Committee review runs in four stages
Going live records that the committee's decision arrives as four review stages, each with its own reviewer and date, rather than as a single answer after the second demonstration.