diff --git a/Misc/NEWS b/Misc/NEWS
index 0829b56..6b00689 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -30,9 +30,14 @@
 
 - Issue #1967: Backport dictionary views from Python 3.x.
 
+
 Library
 -------
 
+- Issue #1670765: Prevent email.generator.Generator from re-wrapping
+  headers in multipart/signed MIME parts, which fixes one of the sources of
+  invalid modifications to such parts by Generator.
+
 - Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
   1-byte argument.  Patch by Victor Stinner.
 
@@ -53,6 +58,7 @@
   Extension extra options may change the output without changing the .c
   file). Initial patch by Collin Winter.
 
+
 Build
 -----