Issue #9260: A finer-grained import lock.

Most of the import sequence now uses per-module locks rather than the
global import lock, eliminating well-known issues with threads and imports.
diff --git a/Misc/NEWS b/Misc/NEWS
index 40426b1..456f256 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,10 @@
 Core and Builtins
 -----------------
 
+- Issue #9260: A finer-grained import lock.  Most of the import sequence
+  now uses per-module locks rather than the global import lock, eliminating
+  well-known issues with threads and imports.
+
 - Issue #14624: UTF-16 decoding is now 3x to 4x faster on various inputs.
   Patch by Serhiy Storchaka.