diff --git a/NEWS b/NEWS
index ca1ad52..f091667 100644
--- a/NEWS
+++ b/NEWS
@@ -4,6 +4,10 @@ Changes from previous version of pkgconf
 Changes from 1.3.7 to 1.4.0:
 ----------------------------
 
+* Notable libpkgconf API changes:
+  - pkgconf_pkg_t.requires has been renamed to pkgconf_pkg_t.required for
+    C++20 compatibility.
+
 * Enhancements:
   - pkgconf and libpkgconf has been ported to Windows as native binaries.
   - improved compatibility with freedesktop.org pkg-config's ${pc_sysrootdir}