After running through the standard upgrade procedure, iocage stopped working with the following output:

# iocage list
Traceback (most recent call last):
  File "/usr/local/bin/iocage", line 6, in <module>
    from iocage.main import cli
  File "/usr/local/lib/python3.6/site-packages/iocage/main.py", line 37, in <module>
    import iocage.lib.ioc_check as ioc_check
  File "/usr/local/lib/python3.6/site-packages/iocage/lib/ioc_check.py", line 28, in <module>
    import libzfs
ImportError: Shared object "libzfs.so.2" not found, required by "libzfs.so"

It appears that it hasn't been adjusted for the new shared object libzfs.so.3

To workaround create a symlink from .3 to .2

# cd /lib
# ln -s libzfs.so.3 libzfs.so.2

But after further investigation (pkg info py36-iocage) I found that it didn't upgrade as part of the pkg update/upgrade process when moving to 12.0.  Looking through the package repo, it isn't even available as a package.  Can this be addressed