add newsfragment

lithp · lithp · commit 72b40ecd4b51 · 2019-12-05T17:44:26.000-08:00
diff --git a/newsfragments/1891.performance.rst b/newsfragments/1891.performance.rst
@@ -0,0 +1,2 @@
+Improve performance when importing a header which is a child of the current canonical
+chain tip.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+Improve performance when importing a header which is a child of the current canonical`
	`2`	`+chain tip.`