3.9 Merge window, second episode

The most interesting comment is this one:

"For the avoidance of doubt the "preferred form" of this code is one which is in an open non patent encumbered format. Where cryptographic key signing forms part of the process of creating an executable the information including keys needed to generate an equivalently functional executable are deemed to be part of the source code."

Apparently stuff like tivoization and Secure Boot were foreseen some time ago...