Today I have updated the baseline versions (as verified by the associated EUPS stub packages) of numpy, astropy, scipy, and matplotlib to match the versions of these packages used by Jenkins and the current versions of
newinstall.sh (merged 2 months ago as part of DM-14011 and announced here).
I have also updated the flake8 baseline to use 3.6.0 (with associated update of pycodestyle). You will see that W504 has been added to some packages yesterday (enforcing our style of breaking a line after a binary operator) and we are now more strict about the use of backslash escapes in normal (non-raw) python strings.
If you are still using an older conda baseline you will need to upgrade it since numpy1.14 is not binary compatible with v1.13. See my previous instructions on updating for details.