Which is the most recent Android that is compatible with Helio-X20?

Products Support MediaTek-X20
#1

Just trying to build Android from source for Helio-X20. But, what is the most recent Android that X20 supports?

  1. 6.0
  2. 7.1.1
  3. 8.0.0
    ???

Cheers
Pei

#2

6.0.0.

Note that Android for MediaTek X20 is a third party build, however files are hosted on the 96Boards website: http://builds.96boards.org/releases/helio-x20/mediatek/aosp/latest/