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Co-authored-by: Ryan Ly <[email protected]>

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Breaking changes
 - The validation methods have been updated with multiple breaking changes. @stephprince [#1911](https://github.com/NeurodataWithoutBorders/pynwb/pull/1911)
    - The behavior of `pynwb.validate(io=...)` now matches the behavior of `pynwb.validate(path=...)`. In previous pynwb versions, `pynwb.validate(io=...)` did not use the cached namespaces during validation. To obtain the same behavior as in previous versions, you can update the function call to `pynwb.validate(io=..., use_cached_namespaces=False)`
+   - `pynwb.validate` will return only a list of validation errors instead of a tuple: (list of validation_errors, status code)
    - The validate module has been renamed to `validation.py`. The validate method can be 
    imported using `import pynwb; pynwb.validate` or `from pynwb import validate`
 

src/pynwb/validation.py

@@ -122,7 +122,7 @@ def get_cached_namespaces_to_validate(path: Optional[str] = None,
         "default": None,
     }, 
     returns="Validation errors in the file.",
-    rtype=(list, (list, bool)),
+    rtype=list,
     is_method=False,
 )
 def validate(**kwargs):