What has changed between A20 revisions?

[chemaper]

Today I received my new A20-OLINUXINO-MICRO that I bought some days ago in the ebay store. I've seen that the revision is C. Is there documentation about what has changed/fixed in each new revision?

For example, one topic in the forum is about power the board with a LiPo battery: one user reports that his A20 C revision doesn't work with his battery but other users with A20 D report that it works with theirs, but I don't known if revision D fix some problem with power management (and therefore I can enjoy other features of the board but it is useless that I bought a LiPo battery with my C revision) or perhaps the problem of the first reporter is other.

[rzr]

Mine is REV. E , I havent boot it yet , but I can make some pictures if needed