[newlib-cygwin] Cygwin: add release note

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=eb628ca8eac37cc810d6b77c5fa376ce8125b570

commit eb628ca8eac37cc810d6b77c5fa376ce8125b570
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Tue Nov 2 15:10:58 2021 +0100

    Cygwin: add release note
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/release/3.4.0 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/winsup/cygwin/release/3.4.0 b/winsup/cygwin/release/3.4.0
new file mode 100644
index 000000000..528c29ce9
--- /dev/null
+++ b/winsup/cygwin/release/3.4.0
@@ -0,0 +1,5 @@
+Bug Fixes
+---------
+
+- Fix bug that Ctrl-C sometimes does not work as expected in Windows Terminal.
+  Addresses: https://cygwin.com/pipermail/cygwin/2021-November/249749.html