Add blurb entry.

markshannon · markshannon · commit f9200347aa4c · 2020-01-15T16:30:55.000Z
diff --git a/Misc/NEWS.d/next/Core and Builtins/2020-01-15-15-33-44.bpo-39320.b4hnJW.rst b/Misc/NEWS.d/next/Core and Builtins/2020-01-15-15-33-44.bpo-39320.b4hnJW.rst
@@ -0,0 +1,15 @@
+Replace four complex bytecodes for building sequences with three simpler ones.
+
+
+The following four bytecodes have been removed:
+
+* BUILD_LIST_UNPACK
+* BUILD_TUPLE_UNPACK 
+* BUILD_SET_UNPACK 
+* BUILD_TUPLE_UNPACK_WITH_CALL
+
+The following three bytecodes have been added:
+
+* LIST_TO_TUPLE
+* LIST_EXTEND
+* SET_UPDATE
