There is a new pull request by Johnnynator against master on the void-packages repository

https://github.com/Johnnynator/void-packages proftpd
https://github.com/void-linux/void-packages/pull/47097

proftpd: update to 1.3.8a.
None

A patch file from https://github.com/void-linux/void-packages/pull/47097.patch is attached