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diff --git a/ChangeLog b/ChangeLog
index d87702e1..87328f2c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1501,6 +1501,10 @@
 
 	* dfa.c: Sync with GNULIB. Twice in one day.
 
+	Unrelated: Start improving profiling comments for switch/case.
+
+	* awkgram.y (switch_head): New production.
+
 2016-11-21         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* dfa.c: Sync with GNULIB.