I don't understand the difference between what is described in the article and how Android has been developed from the start. They have always developed new versions internally and then dumped into AOSP right before release. https://groups.google.com/g/android-building/c/T4XZJCZnqF8/m...
>>lern_t+(OP)
Some projects developed directly in AOSP. Those projects will now develop on the internal branch like the rest. So it's not as big of a change as some are making it out to be.