diff --git a/onnxconverter_common/__init__.py b/onnxconverter_common/__init__.py
index c5475f4..f4d0b81 100644
--- a/onnxconverter_common/__init__.py
+++ b/onnxconverter_common/__init__.py
@@ -8,7 +8,7 @@
 This framework performs optimization for ONNX models and
 includes common utilities for ONNX converters.
 """
-__version__ = "1.9.0"
+__version__ = "1.10.0"
 __author__ = "Microsoft"
 __producer__ = "OnnxMLTools"
 __producer_version__ = __version__
diff --git a/onnxconverter_common/onnx_ex.py b/onnxconverter_common/onnx_ex.py
index 86146c5..c7f372f 100644
--- a/onnxconverter_common/onnx_ex.py
+++ b/onnxconverter_common/onnx_ex.py
@@ -8,12 +8,12 @@
 from . import utils
 from .metadata_props import add_metadata_props
 
-DEFAULT_OPSET_NUMBER = 14  # The maximum opset supported by the converter in the code branch.
+DEFAULT_OPSET_NUMBER = 15  # The maximum opset supported by the converter in the code branch.
 # From https://github.com/onnx/onnx/blob/master/docs/Versioning.md
 OPSET_TO_IR_VERSION = {
     1: 3, 2: 3, 3: 3, 4: 3, 5: 3, 6: 3,
     7: 3, 8: 3, 9: 4, 10: 5, 11: 6, 12: 7,
-    13: 7, 14: 7
+    13: 7, 14: 7, 15: 8
 }