Update note about HCP compatibility (#1465)

Author: tsalo

README.rst

@@ -60,7 +60,13 @@ parcellated time series, functional connectivity matrices, and quality assessmen
 data-releases>`_,
 and `UK Biobank <https://doi.org/10.1016/j.neuroimage.2017.10.034>`_ data.
 
-*Please note that XCP is only compatible with HCP-YA versions downloaded c.a. Feb 2023 at the moment.*
+.. important::
+
+   Please note that *XCP-D* is only compatible with HCP-YA data released around February 2023.
+   This is because the HCP-YA data was not versioned at the time of release,
+   and we have to pin to a specific release date.
+   We cannot guarantee that *XCP-D* will work with other versions of the HCP-YA data,
+   or with data from other HCP projects.
 
 .. image:: https://raw.githubusercontent.com/pennlinc/xcp_d/main/docs/_static/xcp_figure_1.png
 

xcp_d/ingression/hcpya.py

@@ -2,7 +2,8 @@
 # vi: set ft=python sts=4 ts=4 sw=4 et:
 """Functions for converting HCP-YA-format data to fMRIPrep format.
 
-These functions are specifically designed to work with HCP-YA data downloaded around Feb 2023.
+These functions are specifically designed to work with HCP-YA data from the release available in
+February 2023.
 Because HCP-YA doesn't really version their processing pipeline and derivatives,
 we have to pin to download periods.
 """

xcp_d/tests/test_smoothing.py

@@ -75,9 +75,9 @@ def test_smoothing_nifti(fmriprep_without_freesurfer_data):
     return
 
 
-def test_smoothing_cifti(ds001419_data, tmp_path_factory, sigma_lx=None):
+def test_smoothing_cifti(ds001419_data, tmp_path_factory):
     """Test CIFTI smoothing."""
-    sigma_lx = fwhm2sigma(6) if sigma_lx is None else sigma_lx
+    sigma_lx = fwhm2sigma(6)
 
     tmpdir = tmp_path_factory.mktemp('test_smoothing_cifti')
     in_file = ds001419_data['cifti_file']