1 files changed, 1 insertions, 0 deletions
diff --git a/TODO.md b/TODO.md
index 70a9864..8b31d2b 100644
--- a/TODO.md
+++ b/TODO.md
@@ -46,6 +46,7 @@ Puppet modules
 - badusb mitigations.
 - knock integration via https://github.com/juasiepo/knockd
 - apache:
+  - https://httpd.apache.org/docs/2.4/upgrading.html
   - try libapache2-modsecurity.
   - deploy https://git.immerda.ch/csp-report/
 - apt: check if squeeze-lts is being automatically processed.