Update version numbers to 2.2.0

tensorflow/core/public/version.h

@@ -26,7 +26,7 @@ limitations under the License.
 
 // TF_VERSION_SUFFIX is non-empty for pre-releases (e.g. "-alpha", "-alpha.1",
 // "-beta", "-rc", "-rc.1")
-#define TF_VERSION_SUFFIX "-rc4"
+#define TF_VERSION_SUFFIX ""
 
 #define TF_STR_HELPER(x) #x
 #define TF_STR(x) TF_STR_HELPER(x)

tensorflow/tools/pip_package/setup.py

@@ -47,7 +47,7 @@ DOCLINES = __doc__.split('\n')
 # result for pip.
 # Also update tensorflow/tensorflow.bzl and
 # tensorflow/core/public/version.h
-_VERSION = '2.2.0-rc4'
+_VERSION = '2.2.0'
 
 REQUIRED_PACKAGES = [
     'absl-py >= 0.7.0',