updated NEWS for v1.8.1
diff --git a/NEWS b/NEWS
index 89398b9..f9c503f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,9 +1,12 @@
 v1.8.1
-perf : faster and stronger ultra modes (level 11 and 12)
+perf : faster and stronger ultra modes (levels 10+)
 perf : slightly faster compression and decompression speed
 perf : fix bad degenerative case, reported by @c-morgenstern
 fix : decompression failed when using a combination of extDict + low memory address (#397), reported and fixed by Julian Scheid (@jscheid)
 cli : support for dictionary compression (`-D`), by Felix Handte @felixhandte
+cli : fix : `lz4 -d --rm` preserves timestamp (#441)
+cli : fix : do not modify /dev/null permission as root, by @aliceatlas
+api : `_destSize()` variant supported for all compression levels
 build  : `make` and `make test` compatible with `-jX`, reported by @mwgamera
 build  : can control LZ4LIB_VISIBILITY macro, by @mikir
 install: fix man page directory (#387), reported by Stuart Cardall (@itoffshore)