NEWS: updates for v1.5.3

Add release notes for libgpiod v1.5.3.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
diff --git a/NEWS b/NEWS
index 2d9f8f8..cea32a2 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+libgpiod v1.5.3
+===============
+
+Bug fixes:
+- fix unit conversion in event timestamp calculation in C++ bindings
+- fix reading subset of available events in core library
+
 libgpiod v1.5.2
 ===============