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@@ -2,6 +2,10 @@
 
 ## 0.9.8 - TBD
 
+Features
+
+- Memoize recursive calls to pure functions where possible.
+
 Bug Fixes
 
 - Arthur Maciel fixed a bug in the compiler back-end where a terminating semi-colon would not be emitted in the C code generated for a short program.