TCEC-8 was a disappointment for Stockfish. It lost the superfinal to Komodo 9.3 with only 2 wins vs 8 after 100 games played. All the remaining games were drawn.
You may read more about the superfinal: HERE
The result is not satisfying for Stockfish team and it's a logical reason for them to postpone the release of Stockfish 7, long awaited by the community.
My guess it that we will only see development versions until February. What can be done during a "few" more time is to enjoy the development versions ported to Android.
Jim Ablett has just released two binaries of the latest code stamped 7904a7d of December 12th. Although i still keep myself patient for the version update in Rapidroid, others may start using the latest available version on their devices.
Download Stockfish Dev 2015-12-12 for arm5: HERE
Download Stockfish Dev 2015-12-12 for arm7: HERE