diff --git a/onediff_diffusers_extensions/setup.py b/onediff_diffusers_extensions/setup.py
index 3c68b0107..e1350cd69 100644
--- a/onediff_diffusers_extensions/setup.py
+++ b/onediff_diffusers_extensions/setup.py
@@ -12,7 +12,7 @@
     python_requires=">=3.7.0",
     install_requires=[
         "transformers>=4.27.1",
-        "diffusers>=0.24.0,<=0.25.1",
+        "diffusers>=0.24.0,<=0.26.2",
         "accelerate",
         "torch",
         "onefx",
diff --git a/src/infer_compiler_registry/register_diffusers/__init__.py b/src/infer_compiler_registry/register_diffusers/__init__.py
index f0130d576..fc07f98ab 100644
--- a/src/infer_compiler_registry/register_diffusers/__init__.py
+++ b/src/infer_compiler_registry/register_diffusers/__init__.py
@@ -25,9 +25,15 @@
     from diffusers.models.resnet import SpatioTemporalResBlock
     from diffusers.models.transformer_temporal import TransformerSpatioTemporalModel
     from diffusers.models.attention import TemporalBasicTransformerBlock
-    from diffusers.models.unet_spatio_temporal_condition import (
-        UNetSpatioTemporalConditionModel,
-    )
+
+    if diffusers_version >= version.parse("0.26.00"):
+        from diffusers.models.unets.unet_spatio_temporal_condition import (
+            UNetSpatioTemporalConditionModel,
+        )
+    else:
+        from diffusers.models.unet_spatio_temporal_condition import (
+            UNetSpatioTemporalConditionModel,
+        )
 
     if diffusers_version >= version.parse("0.25.00"):
         from diffusers.models.autoencoders.autoencoder_kl_temporal_decoder import (
diff --git a/src/onediff/infer_compiler/transform/builtin_transform.py b/src/onediff/infer_compiler/transform/builtin_transform.py
index cd0faf25b..0043a7df1 100644
--- a/src/onediff/infer_compiler/transform/builtin_transform.py
+++ b/src/onediff/infer_compiler/transform/builtin_transform.py
@@ -3,6 +3,7 @@
 import os
 import importlib
 import types
+import inspect
 from functools import singledispatch, partial
 from collections import OrderedDict
 from collections.abc import Iterable
@@ -160,10 +161,6 @@ def _(mod: type):
 
 
 def default_converter(obj, verbose=False, *, proxy_cls=None):
-    # Higher versions of diffusers might use torch.nn.modules.Linear
-    if obj is torch.nn.Linear:
-        return flow.nn.Linear
-
     if not is_need_mock(type(obj)):
         return obj
     try:
@@ -211,7 +208,6 @@ def init(self):
                 attr = getattr(proxy_md, k)
                 try:
                     self.__dict__[k] = torch2oflow(attr)
-
                 except Exception as e:
                     logger.error(f"convert {type(attr)} failed: {e}")
                     raise NotImplementedError(f"Unsupported type: {type(attr)}")
diff --git a/src/onediff/infer_compiler/transform/custom_transform.py b/src/onediff/infer_compiler/transform/custom_transform.py
index 32eb3a774..0d0e71f59 100644
--- a/src/onediff/infer_compiler/transform/custom_transform.py
+++ b/src/onediff/infer_compiler/transform/custom_transform.py
@@ -1,5 +1,6 @@
 """A module for registering custom torch2oflow functions and classes."""
 import inspect
+import importlib.util
 from pathlib import Path
 from typing import Callable, Dict, List, Optional, Union
 from ..import_tools import import_module_from_path
@@ -50,16 +51,19 @@ def import_module_safely(module_path, module_name):
     # compiler_registry_path
     registry_path = Path(__file__).parents[3] / "infer_compiler_registry"
 
-    import_module_safely(registry_path / "register_diffusers", "register_diffusers")
+    if importlib.util.find_spec("diffusers") is not None:
+        import_module_safely(registry_path / "register_diffusers", "register_diffusers")
 
-    import_module_safely(
-        registry_path / "register_onediff_quant", "register_onediff_quant"
-    )
+    if importlib.util.find_spec("onediff_quant") is not None:
+        import_module_safely(
+            registry_path / "register_onediff_quant", "register_onediff_quant"
+        )
 
-    import_module_safely(
-        registry_path / "register_diffusers_enterprise_lite",
-        "register_diffusers_enterprise_lite",
-    )
+    if importlib.util.find_spec("diffusers_enterprise_lite") is not None:
+        import_module_safely(
+            registry_path / "register_diffusers_enterprise_lite",
+            "register_diffusers_enterprise_lite",
+        )
 
 
 def ensure_list(obj):
diff --git a/src/onediff/infer_compiler/transform/manager.py b/src/onediff/infer_compiler/transform/manager.py
index 672e7fb49..03c2c8322 100644
--- a/src/onediff/infer_compiler/transform/manager.py
+++ b/src/onediff/infer_compiler/transform/manager.py
@@ -26,7 +26,7 @@ def __init__(self, debug_mode=False, tmp_dir="./output"):
 
     def _setup_logger(self):
         name = "ONEDIFF"
-        level = logging.DEBUG if self.debug_mode else logging.ERROR
+        level = logging.DEBUG if self.debug_mode else logging.WARNING
         logger.configure_logging(name=name, file_name=None, level=level, log_dir=None)
         self.logger = logger
 
diff --git a/src/onediff/infer_compiler/utils/log_utils.py b/src/onediff/infer_compiler/utils/log_utils.py
index cfb6ac42f..9e9892209 100644
--- a/src/onediff/infer_compiler/utils/log_utils.py
+++ b/src/onediff/infer_compiler/utils/log_utils.py
@@ -37,7 +37,7 @@ def configure_logging(self, name, level, log_dir=None, file_name=None):
 
         # Create a console formatter and add it to a console handler
         console_formatter = ColorFormatter(
-            fmt="%(levelname)s [%(asctime)s] - %(message)s", datefmt="%Y-%m-%d %H:%M:%S"
+            fmt="%(levelname)s [%(asctime)s] %(filename)s:%(lineno)d - %(message)s", datefmt="%Y-%m-%d %H:%M:%S"
         )
         console_handler = logging.StreamHandler()
         console_handler.setFormatter(console_formatter)