Mention AES bug fix in NEWS
diff --git a/NEWS.md b/NEWS.md
index 8cbc2aa..d9c0217 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,6 @@
-1.5.2 [201X-XX-XX]
+1.5.2 [2019-XX-XX]
 ==================
+* Fix bug in AES encryption affecting certain file sizes
 * Support systems with small stack size.
 * Support mbed TLS as crypto backend.
 * Add nullability annotations.