diff --git a/winsup/cygwin/release/2.9.0 b/winsup/cygwin/release/2.9.0
index 0fff76330..6b1f0f2b9 100644
--- a/winsup/cygwin/release/2.9.0
+++ b/winsup/cygwin/release/2.9.0
@@ -14,6 +14,8 @@ What changed:
 
 - Improved implementation of <elf.h>.
 
+- Add %s support for strptime..
+
 
 Bug Fixes
 ---------
diff --git a/winsup/doc/new-features.xml b/winsup/doc/new-features.xml
index 9bdb94c11..4f1ff97dc 100644
--- a/winsup/doc/new-features.xml
+++ b/winsup/doc/new-features.xml
@@ -25,6 +25,10 @@ New API: renameat2.
 Improved implementation of &lt;elf.h&gt;.
 </para></listitem>
 
+<listitem><para>
+strptime(3) supports %s (seconds since Epoch) now, analogue to strftime.
+</para></listitem>
+
 </itemizedlist>
 
 </sect2>