docs: thanks, Carl Friedrich Bolz-Tereick

nedbat · nedbat · commit 65033080e0ad · 2022-05-28T15:37:23.000-04:00
diff --git a/CHANGES.rst b/CHANGES.rst
@@ -20,7 +20,12 @@ development at the same time, such as 4.5.x and 5.0.
 Unreleased
 ----------
 
-Nothing yet.
+- Improved performance on PyPy, and other environments that need the pure
+  Python trace function.  Thanks, `Carl Friedrich Bolz-Tereick
+  <pull 1381_>`_.
+
+.. _pull 1381: https://github.com/nedbat/coveragepy/pull/1381
+
 
 
 .. _changes_64:
diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
@@ -31,6 +31,7 @@ Brett Cannon
 Bruno P. Kinoshita
 Buck Evan
 Calen Pennington
+Carl Friedrich Bolz-Tereick
 Carl Gieringer
 Catherine Proulx
 Chris Adams
