More descriptive changelog

Author: snbianco

CHANGES.rst

@@ -10,15 +10,21 @@ Breaking Changes
 ^^^^^^^^^^^^^^^^
 
 - Cube cutout filenames now use a hyphen between dimensions (e.g., ``10-x-10`` instead of ``10x10``). They also include unit suffixes when 
-  users request sizes as an `astropy.units.Quantity` object (e.g., ``5arcmin-x-4arcmin`` or ``30arcsec-x-20arcsec``). This change may break 
-  code that parses filenames or relies on old glob patterns. [#167]
+  users request sizes as an ``astropy.units.Quantity`` object (e.g., ``5arcmin-x-4arcmin`` or ``30arcsec-x-20arcsec``). RA/Dec formatting within
+  filenames now uses 7 decimal places (``{:.7f}``) for consistency across classes. These changes may break code that parses filenames or relies on
+  old glob patterns. [#167]
 
   Migration:
 
   - Update glob patterns from ``*_<ra>_<dec>_<ny>x<nx>_astrocut.fits`` to ``*_<ra>_<dec>_*-x-*_astrocut.fits``.
-  - If parsing filenames, adjust regex accordingly (e.g., replace ``(?P<ny>\d+)x(?P<nx>\d+)`` with 
-    ``(?P<ny>\d+(?:\.\d+)?)(?P<ny_unit>arcsec|arcmin|deg|pixel|pix)?-x-(?P<nx>\d+(?:\.\d+)?)(?P<nx_unit>arcsec|arcmin|deg|pixel|pix)?``).
-  - Prefer reading dimensions from file metadata (e.g., FITS headers) when possible to avoid filename coupling.
+  - If parsing filenames, switch to flexible regex patterns:
+    - RA/Dec: ``_(?P<ra>[-+]?\\d+(?:\\.\\d+)?)_(?P<dec>[-+]?\\d+(?:\\.\\d+)?)_``
+    - Dimensions (with optional units): ``(?P<ny>\\d+(?:\\.\\d+)?)(?P<ny_unit>arcsec|arcmin|deg|pixel|pix)?-x-(?P<nx>\\d+(?:\\.\\d+)?)(?P<nx_unit>arcsec|arcmin|deg|pixel|pix)?``
+  - Prefer reading RA/Dec, dimensions, and scales from file metadata (FITS headers/WCS) instead of relying on filenames.
+  - Example transition:
+    - Old: ``..._83.406310_-62.489771_64x64_astrocut.fits``
+    - New (no unit - pixels assumed): ``..._83.4063100_-62.4897710_64-x-64_astrocut.fits``
+    - New (with units): ``..._83.4063100_-62.4897710_5arcmin-x-4arcmin_astrocut.fits``
 
 
 1.1.0 (2025-09-15)