diff --git a/.gitignore b/.gitignore
index aa5788a..69a001f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,4 @@
 /libpinyin-1.3.0.tar.gz
 /libpinyin-1.5.91.tar.gz
 /libpinyin-1.5.92.tar.gz
+/libpinyin-1.6.0.tar.gz
diff --git a/libpinyin-1.6.x-head.patch b/libpinyin-1.6.x-head.patch
index 85a096c..e69de29 100644
--- a/libpinyin-1.6.x-head.patch
+++ b/libpinyin-1.6.x-head.patch
@@ -1,62 +0,0 @@
-diff --git a/src/pinyin.cpp b/src/pinyin.cpp
-index ac72623..29c4c8c 100644
---- a/src/pinyin.cpp
-+++ b/src/pinyin.cpp
-@@ -2488,9 +2488,6 @@ static bool _get_char_offset_recur(pinyin_instance_t * instance,
- 
-         const size_t newstart = key_rest.m_raw_end;
- 
--        if (newstart > offset)
--            return true;
--
-         const ChewingKey zero_key;
-         if (zero_key == key) {
-             /* assume only one key here for "'" or the last key. */
-@@ -2506,7 +2503,10 @@ static bool _get_char_offset_recur(pinyin_instance_t * instance,
- 
-         gfloat pinyin_poss = item.get_pronunciation_possibility(&key);
-         if (pinyin_poss < FLT_EPSILON)
--            return false;
-+            continue;
-+
-+        if (newstart > offset)
-+            return true;
- 
-         ++length;
- 
-@@ -2530,6 +2530,9 @@ bool pinyin_get_character_offset(pinyin_instance_t * instance,
-     pinyin_context_t * context = instance->m_context;
-     PhoneticKeyMatrix & matrix = instance->m_matrix;
- 
-+    if (0 == matrix.size())
-+        return false;
-+
-     assert(offset < matrix.size());
-     _check_offset(matrix, offset);
- 
-@@ -2973,7 +2976,7 @@ static bool _remember_phrase_recur(pinyin_instance_t * instance,
- 
-         gfloat pinyin_poss = item.get_pronunciation_possibility(&key);
-         if (pinyin_poss < FLT_EPSILON)
--            return false;
-+            continue;
- 
-         /* push value */
-         g_array_append_val(cached_keys, key);
-diff --git a/src/storage/phonetic_key_matrix.cpp b/src/storage/phonetic_key_matrix.cpp
-index 8f8bd4a..da8d06f 100644
---- a/src/storage/phonetic_key_matrix.cpp
-+++ b/src/storage/phonetic_key_matrix.cpp
-@@ -497,8 +497,10 @@ gfloat compute_pronunciation_possibility(PhoneticKeyMatrix * matrix,
-                                          PhraseItem & item){
-     assert(end < matrix->size());
- 
--    assert(matrix->get_column_size(start) > 0);
--    assert(matrix->get_column_size(end) > 0);
-+    if(matrix->get_column_size(start) <= 0)
-+        return 0.;
-+    if(matrix->get_column_size(end) <= 0)
-+        return 0.;
- 
-     g_array_set_size(cached_keys, 0);
-     return compute_pronunciation_possibility_recur
diff --git a/libpinyin.spec b/libpinyin.spec
index 6d18578..4922fa1 100644
--- a/libpinyin.spec
+++ b/libpinyin.spec
@@ -1,8 +1,8 @@
-%global snapshot 1
+%global snapshot 0
 
 Name:           libpinyin
-Version:        1.5.92
-Release:        3%{?dist}
+Version:        1.6.0
+Release:        1%{?dist}
 Summary:        Library to deal with pinyin
 
 License:        GPLv2+
@@ -92,6 +92,9 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 
 
 %changelog
+* Wed Sep  7 2016 Peng Wu <pwu@redhat.com> - 1.6.0-1
+- Update to 1.6.0
+
 * Mon Aug 15 2016 Peng Wu <pwu@redhat.com> - 1.5.92-3
 - Fixes crashes again
 
diff --git a/sources b/sources
index e0c4510..f472987 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-ce56289e833d493c8285300c87511855  libpinyin-1.5.92.tar.gz
+27416347b6903a9d5b7bf36002825a72  libpinyin-1.6.0.tar.gz