diff --git a/c/todo.txt b/c/todo.txt
index d075a257b..f76d12ff6 100644
--- a/c/todo.txt
+++ b/c/todo.txt
@@ -2,7 +2,9 @@
 BUGFIXES
 
 odat/osh
-zpoke@eof?
+z/xpoke@eof?
+impl x 4 for mmap dkvp
+check other formats
 
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