Although we plan to have this release in Fedora 23, it's still not available directly in oficial repositories as the change of modules store locations requires change in
selinux-policy packages which are not ready yet.
However, you can use packages from my COPR plautrba-selinux repository and use
/usr/libexec/selinux/semanage_migrate_store script from libsemanage package to migrate your modules store manually.
Please test and report issues