diff --git a/TODO b/TODO
index df63420c..71fbc1f3 100644
--- a/TODO
+++ b/TODO
@@ -14,6 +14,13 @@ afraid to cast your vote for the next feature to be implemented!
 - Investigate how early internal structures can be accessed; this would
   prevent structures from being parsed and serialized multiple times.
 - Built-in support for target="_blank" on all external links
+- Incorporate data: support as implemented here:
+  http://htmlpurifier.org/phorum/read.php?3,3491,3548
+- Fix ImgRequired to handle data correctly
+- Provide callback/lookup table of allowed class attributes
+- Think about allowing explicit order of operations hooks for transforms
+- Allow more relaxed "class" definition than NMTOKENS for appropriate
+  doctypes
 
 FUTURE VERSIONS
 ---------------