Hi there,
Great question!
We released version 6.4 in September which represents the first part of our journey to version 7. Since then, we have experienced some delays in releasing the affiliate system (slotted for 6.5) which can be attributed to a number of things such as our hiring & on-boarding of new staff & COVID hurting our development capacity in December - January.
All things considered, the affiliate system is not yet where we'd like it to be and as a company, we will never release something we're not completely happy with.
We are preparing a release in the coming week or two (6.5) which will include a number of plugins, bug fixes, and more though sadly, it most likely would not include the affiliate system. If that is the case, the affiliate system would get dedicated attention and be released in 6.6, followed by 7.0.