It looks like samesite is available since 2.4.47 (based on CHANGES).

git-svn-id: https://svn.apache.org/repos/asf/httpd/test/framework/trunk@1898646 13f79535-47bb-0310-9956-ffa450edef68
1 file changed
tree: 2ac618aee0237be5f1987e63676eeae756bb0b6f
  1. build/
  2. c-modules/
  3. scripts/
  4. t/
  5. LICENSE
  6. Makefile.PL
  7. Misc.pm
  8. NOTICE
  9. README
  10. STATUS