There is and update of Python to 3.6.1 coming to Fedora 26 .
Due to a bug  tho following scenario might happen:
0. user has python3 3.6.0 and python3-foo-0.1-1
1. python3 3.6.1 is pushed to Fedora 26 stable
2. maintainer of python3-foo rebuilds the package to python3-foo-0.1-2
(this happens against python3 3.6.1) and pushes it to updates
3. user updates to python3-foo-0.1-2, but does not update python3
4. if the Python foo module meets certain conditions, it is broken
5. user can `dnf update python3` to fix the issue
Because Fedora 26 is not yet released, if we push Python 3.6.1 now, this
problem can only affect the users who run Alpha and do partial dnf
updates, and a full dnf update fixes the issue. So we decided to push
Python 3.6.1 to Fedora anyway.
Should I note this at the common bugs page ? I don't think the
scenario is common enough, but I feel a need to inform about it somewhere.