Make version mismatch warning informative and actionable (#4505)

Author: h-mayorquin

src/spikeinterface/core/base.py

@@ -1145,14 +1145,8 @@ def _load_extractor_from_dict(dic) -> "BaseExtractor":
 
     assert extractor_class is not None and class_name is not None, "Could not load spikeinterface class"
     is_old_version = not _check_same_version(class_name, dic["version"])
-    if is_old_version:
-        warnings.warn(
-            f"Versions are not the same. This might lead to compatibility errors. "
-            f"Using {class_name.split('.')[0]}=={dic['version']} is recommended"
-        )
-
-        if hasattr(extractor_class, "_handle_backward_compatibility"):
-            new_kwargs = extractor_class._handle_backward_compatibility(new_kwargs, dic)
+    if is_old_version and hasattr(extractor_class, "_handle_backward_compatibility"):
+        new_kwargs = extractor_class._handle_backward_compatibility(new_kwargs, dic)
 
     # Initialize the extractor
     extractor = extractor_class(**new_kwargs)