diff --git a/releases/models.py b/releases/models.py
index c5f32b3..fab3528 100644
--- a/releases/models.py
+++ b/releases/models.py
@@ -9,6 +9,9 @@ from django.utils import timezone
 
 RE_PACKAGE_VERSION = re.compile('((?P<package>.*)[@])?(?P<version>.*)')
 
+# We don't actually parse for HEX yet (it's simply non-semver to us) but if we do we could use the following lengths:
+# 12 | 16 | 20 | 32 | 40 | 64
+
 
 def is_valid_semver(full_version):
     try: