If i call this version 6.99, this would be nice joke hiding some reality in it. For sure, we are close enough to conclude TCEC-8 superfinal and if the next release of Stockfish is entitled v7.0, it will not be too surprising.
I'm sure a lot of ELO is added over Stockfish 6 but i still prefer to wait for v7 before replacing v6 in Rapidroid.
I've just checked these two compiles. Unfortunately, once again arm7 didn't load while arm5 works fine. However, it seems this issue applies to Stockfish only as arm7 versions of Arasan and Maverick are working on my Rockchip 3188 quad core.
There should be something specific in Stockfish source that leads to an incompatibility and it should be something that Arasan and Maverick don't include.
If someone manages to get the arm7 compile working with Chess for Android or Droidfish, please let me know.
Download arm5 binary: HERE
Download arm7 binary: HERE