update NEWS for 0.4.2
diff --git a/NEWS b/NEWS
index b76f578..00cfb8c 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,7 @@
+v0.4.2 :
+Generic minor improvements for small blocks
+Fixed : big-endian compatibility, by Peter Harris (#85)
+
 v0.4.1
 Fixed : ZSTD_LEGACY_SUPPORT=0 build mode (reported by Luben)
 removed `zstd.c`