See for yourself:
https://sourcegraph.com/github.com/bitcoin/bitcoin/-/blob/src/policy/policy.h?L72:27-72:46
Changed to 80 bytes in 2014 -
https://github.com/bitcoin/bitcoin/commit/a9306587a42eac7fb889b9c8d03140980fdf1398
Right, so the original limit was around 40. That’s what Luke pointed out.