The change done for #10645 deserves a NEWS entry
diff --git a/Misc/NEWS b/Misc/NEWS
index 6f10ba6..772eef9 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -781,6 +781,9 @@
 Build
 -----
 
+- Issue #10645: Installing Python does no longer create a
+  Python-X.Y.Z-pyX.Y.egg-info file in the lib-dynload directory.
+
 - Do not accidentally include the directory containing sqlite.h twice when
   building sqlite3.