diff --git a/libpinyin.spec b/libpinyin.spec
index 6aecac4..6b7729f 100644
--- a/libpinyin.spec
+++ b/libpinyin.spec
@@ -94,6 +94,9 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 %changelog
 * Tue Nov  1 2016 Peng Wu <pwu@redhat.com> - 1.6.91-1
 - Update to 1.6.91
+- change license to GPLv3+
+- import open-gram dictionary and remove pinyin tones
+- add some checks when load data from file
 
 * Wed Sep  7 2016 Peng Wu <pwu@redhat.com> - 1.6.0-1
 - Update to 1.6.0