CHANGELOG.md in convert_unit-0.2.0 vs CHANGELOG.md in convert_unit-1.0.0

@@ -1,4 +1,15 @@
+## v1.0.0
+* Stable Version
+* Add MassFow
+* Add HighPressure
+* Add LowPressure
+* Add KinematicViscosity
+* Add Speed
+* Add DynamicViscosity
+* Add Torque
+* Add formatter method to_c, to_s, to_i, to_r, to_f
+
 ## v0.2.0
 * Change module required location
 * Add module self method for get available unit conversion class
 * Add Density method conversion
 * Add Volumetric liquid flow