Update 1.16.1 version.py and RELEASE.md (#47)

* Mark Tensorflow Metadata compatible with Protobuf v26+.

PiperOrigin-RevId: 683195343

* Update 1.16.1 in version.py and RELEASE.md

---------

Co-authored-by: tf-metadata-team <no-reply@google.com>

Author: vkarampudi

RELEASE.md

@@ -1,3 +1,15 @@
+# Version 1.16.1
+
+## Major Features and Improvements
+
+## Bug Fixes and Other Changes
+
+*   Relax dependency on Protobuf to include version 5.x
+
+## Breaking Changes
+
+## Deprecations
+
 # Version 1.16.0
 
 ## Major Features and Improvements

setup.py

@@ -129,7 +129,7 @@ def run(self):
         'absl-py>=0.9,<3.0.0',
         'googleapis-common-protos>=1.56.4,<2;python_version>="3.11"',
         'googleapis-common-protos>=1.52.0,<2;python_version>="3.11"',
-        'protobuf>=4.25.2,<5;python_version>="3.11"',
+        'protobuf>=4.25.2,<6.0.0dev;python_version>="3.11"',
         'protobuf>=3.20.3,<4.21;python_version<"3.11"',
     ],
     python_requires='>=3.9,<4',

tensorflow_metadata/version.py

@@ -14,4 +14,4 @@
 """Contains the version string of TFMD."""
 
 # Note that setup.py uses this version.
-__version__ = '1.16.0'
+__version__ = '1.16.1'