Question, if I install the current release candidate, and it happens that this candidate is the same build as the real release, how compatible will it be to the "real" release?
It is difficult to know when the Slavs separated from the Balts. The Kiev culture is the only one that can be definitively attributed to the Proto-Slavs. Regarding earlier cultures, there is no certainty. There are many contradictory and contested hypotheses. There is no consensus concerning their relationship with the Proto-Slavs. The cultures most frequently discussed are the Milograd culture, the Dnieper-Dvina culture, the Zarubintsy culture, and the Chernoles culture.
In my opinion, the Kiev culture derives mostly from Dnieper-Dvina (Днепро-Двинская культура).