The tensorflow packages prior to version 1.14.0-5 were missing some soname links. This has been fixed in 1.14.0-5, so the upgrade will need to overwrite the untracked soname links created by ldconfig. If you get an errors like so
tensorflow: /usr/lib/libtensorflow.so.1 exists in filesystem
tensorflow: /usr/lib/libtensorflow_cc.so.1 exists in filesystem
tensorflow: /usr/lib/libtensorflow_framework.so.1 exists in filesystem
when updating, use
pacman -Suy --overwrite=usr/lib/libtensorflow.so.1,usr/lib/libtensorflow_cc.so.1,usr/lib/libtensorflow_framework.so.1
to perform the upgrade.