Update: I found the thread, https://orgmode.org/list/87lf90b5ey....@gnu.org/
Timothy <tecos...@gmail.com> writes: > Regarding the Emacs 24.3 requirement, I haven't got the thread on hand > but IIRC Bastien said that he will bump Org's minimum Emacs to 25 in the > 9.5 release. As long as I'm not mis-remembering, the above should be > fine.