[newlib-cygwin] Cygwin: add new IPPROTO_TCP options to release notes

[Corinna Vinschen <corinna@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=5266248285bb3d2d012abd8a73957a0368f252ff

commit 5266248285bb3d2d012abd8a73957a0368f252ff
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Wed Jul 1 21:33:15 2020 +0200

    Cygwin: add new IPPROTO_TCP options to release notes
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/release/3.1.6 | 11 +++++++++++
 winsup/doc/new-features.xml |  5 +++++
 2 files changed, 16 insertions(+)

diff --git a/winsup/cygwin/release/3.1.6 b/winsup/cygwin/release/3.1.6
new file mode 100644
index 000000000..d64ee4c92
--- /dev/null
+++ b/winsup/cygwin/release/3.1.6
@@ -0,0 +1,11 @@
+What changed:
+-------------
+
+- Support more IPPROTO_TCP socket options: TCP_FASTOPEN, TCP_KEEPIDLE,
+  TCP_KEEPCNT, TCP_KEEPINTVL, TCP_QUICKACK, TCP_USER_TIMEOUT.
+
+
+Bug Fixes:
+----------
+
+- Fix IPPROTO_TCP option handling, especially in terms of TCP_MAXSEG.
diff --git a/winsup/doc/new-features.xml b/winsup/doc/new-features.xml
index 32479de5d..ca64b7a6f 100644
--- a/winsup/doc/new-features.xml
+++ b/winsup/doc/new-features.xml
@@ -90,6 +90,11 @@ Support WSL symlinks.  Create those by default now.
 FIFOs can now be opened multiple times for reading.
 </para></listitem>
 
+<listitem><para>
+Support more IPPROTO_TCP socket options: TCP_FASTOPEN, TCP_KEEPIDLE,
+TCP_KEEPCNT, TCP_KEEPINTVL, TCP_QUICKACK, TCP_USER_TIMEOUT.
+</para></listitem>
+
 </itemizedlist>
 
 </sect2>