CHANGELOG.md in numo-libsvm-1.1.2 vs CHANGELOG.md in numo-libsvm-2.0.0

@@ -1,4 +1,9 @@
+# 2.0.0
+- Redesign native extension codes.
+- Change not ot use git submodule for LIBSVM codes bundle.
+- Introduce conventional commits.
+
 # 1.1.2
 - Remove dependent gem's type declaration file from installation files.
 
 # 1.1.1
 - Fix version specifier of runtime dependencies.