znc 0.068 was released more than a month ago. Reproducible: Always Steps to Reproduce:
Created attachment 190160 [details, diff] Patch against current znc-0.066 ebuild This patch also includes the sasl use flag and some enhancement of the pkg_postinst elog.
Note that 0.070 has been out since may 23. I have tested, simply using the patch by Victor Ostorga and incrementing the version number is sufficient.
Have been months without maintainer's comment so I just commited it, hope you don't mind