CHANGES.md in watir-6.3.0 vs CHANGES.md in watir-6.4.0.rc1

@@ -1,4 +1,8 @@
+### 6.4.0.rc1 (2017-06-21)
+
+* Significant performance updates
+
 ### 6.3.0 (2017-06-20)
 
 * Allow locating elements by attribute presence/absence (#345)
 * Element#flash configurable by color, number, and delay (thanks Paul3816547290)
 * Implement Select#text like Select#value (thanks Arik Jones)