After reading another thread I decided to check the firware version of my 7dmk2. It is 1.0.2.
So far I have not had any focus issues (only three lenses I use are the 16-35 f4 L, 70-200 f2.8 L non-IS version and a 50mm 1.8 STM).
Is it worth it to do a firmware upgrade? Are there any improvements other than the focusing issues? Again, (knock on wood) my 7dmk2 has been working great so far. Images are sharp, I have been able to capture birds in flight without a problem, etc.

