By oversight 52ac6cd2d0 makes ginDeletePage() sets pd_prune_xid of page to be deleted before entering the critical section. It appears that only versions 11 and later were affected by this oversight.
b107140804 Fix page modification outside of critical section in GIN
src/backend/access/gin/ginvacuum.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)