diff --git a/base/base_tests/assert_test.cpp b/base/base_tests/assert_test.cpp
index 399489c855..7710f911d8 100644
--- a/base/base_tests/assert_test.cpp
+++ b/base/base_tests/assert_test.cpp
@@ -9,6 +9,10 @@
 UNIT_TEST(Assert_Smoke)
 {
   int x = 5;
+  // to avoid warning in release
+#ifdef RELEASE
+  UNUSED_VALUE(x);
+#endif
   ASSERT_EQUAL ( x, 5, () );
   ASSERT_NOT_EQUAL ( x, 6, () );
   //ASSERT_EQUAL ( x, 666, ("Skip this to continue test") );
diff --git a/coding/hex.hpp b/coding/hex.hpp
index 86ebe4dda6..41f7cbe174 100644
--- a/coding/hex.hpp
+++ b/coding/hex.hpp
@@ -44,7 +44,10 @@ inline string NumToHex(IntT n)
   for (size_t i = 0; i < sizeof(n); ++i)
   {
     buf[i] = (n >> ((sizeof(n) - 1) * 8));
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wshift-count-overflow"
     n <<= 8;
+#pragma GCC diagnostic pop
   }
 
   return ToHex(buf, sizeof(buf));
diff --git a/drape_frontend/drape_frontend_tests/memory_feature_index_tests.cpp b/drape_frontend/drape_frontend_tests/memory_feature_index_tests.cpp
index 62984d8611..5eeceff2d8 100644
--- a/drape_frontend/drape_frontend_tests/memory_feature_index_tests.cpp
+++ b/drape_frontend/drape_frontend_tests/memory_feature_index_tests.cpp
@@ -21,11 +21,11 @@ namespace
       features[indexes[i]].m_isOwner = true;
   }
 
-  void ResetReadedMark(vector<df::FeatureInfo> & features)
-  {
-    for (size_t i = 0; i < features.size(); ++i)
-      features[i].m_isOwner = false;
-  }
+//  void ResetReadedMark(vector<df::FeatureInfo> & features)
+//  {
+//    for (size_t i = 0; i < features.size(); ++i)
+//      features[i].m_isOwner = false;
+//  }
 }
 
 UNIT_TEST(MemoryFeatureIndex_SimpleTest)
diff --git a/drape_head/drape_surface.cpp b/drape_head/drape_surface.cpp
index 87df3bb8b3..aa08245aee 100644
--- a/drape_head/drape_surface.cpp
+++ b/drape_head/drape_surface.cpp
@@ -114,6 +114,6 @@ void DrapeSurface::sizeChanged(int)
 
 m2::PointF DrapeSurface::GetDevicePosition(const QPoint & p)
 {
-  qreal ratio = devicePixelRatio();
+//  qreal ratio = devicePixelRatio();
   return m2::PointF(p.x() /* ratio*/, p.y() /* ratio*/);
 }
diff --git a/indexer/classificator.cpp b/indexer/classificator.cpp
index 0e1288c9b6..1fd02b0b8b 100644
--- a/indexer/classificator.cpp
+++ b/indexer/classificator.cpp
@@ -172,6 +172,10 @@ namespace ftype
     ASSERT ( value <= max_value, ("invalid input value", value) );
 
     uint8_t const cl = get_control_level(type);
+    // to avoid warning in release
+#ifdef RELEASE
+    UNUSED_VALUE(levels_count);
+#endif
     ASSERT ( cl < levels_count, (cl) );
 
     set_value(type, cl, value);
diff --git a/indexer/feature_data.cpp b/indexer/feature_data.cpp
index 4dd2d65bec..0d3fe24da0 100644
--- a/indexer/feature_data.cpp
+++ b/indexer/feature_data.cpp
@@ -132,6 +132,7 @@ void FeatureParams::SetGeomType(feature::EGeomType t)
   case GEOM_POINT: m_geomType = HEADER_GEOM_POINT; break;
   case GEOM_LINE: m_geomType = HEADER_GEOM_LINE; break;
   case GEOM_AREA: m_geomType = HEADER_GEOM_AREA; break;
+  default: ASSERT(false, ());
   }
 }
 
diff --git a/stats/client/event_writer.cpp b/stats/client/event_writer.cpp
index 83d5ff8c83..103ce5807b 100644
--- a/stats/client/event_writer.cpp
+++ b/stats/client/event_writer.cpp
@@ -8,7 +8,7 @@ namespace stats
 {
 
 EventWriter::EventWriter(string const & uniqueClientId, string const & dbPath)
-  : m_cnt(0), m_db(0), m_path(dbPath), m_uid(0)
+  : /*m_cnt(0), m_db(0), */m_path(dbPath)/*, m_uid(0)*/
 {
 }
 
diff --git a/stats/client/event_writer.hpp b/stats/client/event_writer.hpp
index 2b0ba744ac..a3f2e266f2 100644
--- a/stats/client/event_writer.hpp
+++ b/stats/client/event_writer.hpp
@@ -27,10 +27,10 @@ private:
   bool OpenDb(string const & path);
 
 private:
-  unsigned int m_cnt;
-  void * m_db; // @todo Replace with ours impl
+//  unsigned int m_cnt;
+//  void * m_db; // @todo Replace with ours impl
   string m_path;
-  unsigned long long m_uid;
+//  unsigned long long m_uid;
 };
 
 }  // namespace stats