diff --git a/winsup/cygwin/release/3.1.7 b/winsup/cygwin/release/3.1.7
index 0c437e9e9..2f4856495 100644
--- a/winsup/cygwin/release/3.1.7
+++ b/winsup/cygwin/release/3.1.7
@@ -8,3 +8,6 @@ Bug Fixes:
 
 - Fix multiple reader support for FIFOs
   Addresses: https://sourceware.org/pipermail/cygwin/2020-July/245456.html
+
+- Fix an mmap issue that could cause failure with errno EFBIG
+  Partially addresses: https://sourceware.org/pipermail/cygwin/2020-July/245557.html