diff --git a/TODO b/TODO
index 5fbb21e..0c94f2e 100644
--- a/TODO
+++ b/TODO
@@ -69,6 +69,7 @@
 	063 [x] creating import rewriting metaprogram to automatically import .C or .H files
 	064 [thirdpaty/luau] create bindings module (see: https://luau.org)
 	065 [array] add dynamic, but stable array implementation (values should not move in memory once appended to the array; should mirror procedures on 'Static_Array')
+	066 [x] add generational ids module(?) (u64 that encodes generation # and index); maybe this integrates with [map] or [array]?
 
 
 *** DONE ***