diff --git a/NEWS b/NEWS
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+++ b/NEWS
@@ -1,3 +1,8 @@
+v0.4.7
+Improved : small compression speed improvement in HC mode
+Changed : `zstd_decompress.c` has ZSTD_LEGACY_SUPPORT to 0 by default
+fix : bt search bug
+
 v0.4.6
 fix : fast compression mode on Windows
 New : cmake configuration file, thanks to Artyom Dymchenko
diff --git a/images/CSpeed.png b/images/CSpeed.png
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diff --git a/images/DSpeed.png b/images/DSpeed.png
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