updated changelog

Author: cdeline

docs/sphinx/source/changelog/pending.rst

@@ -5,12 +5,16 @@ v3.0.x (X, X, 2025)
 Enhancements
 ------------
 * :py:func:`~rdtools.degradation.degradation_year_on_year` has new parameter ``label=`` 
-  to return the calc_info['YoY_values'] as either right labeled (default), or center labeled. 
-  (:issue:`459`)
-
+  to return the calc_info['YoY_values'] as either right labeled (default), left or
+  center labeled. (:issue:`459`)
 * :py:func:`~rdtools.plotting.degradation_timeseries_plot` has new parameter ``label=`` 
   to allow the timeseries plot to have right labeling (default), center or left labeling. 
   (:issue:`455`)
+* :py:func:`~rdtools.degradation.degradation_year_on_year` has new parameter ``multi_yoy`` 
+  (default False) to trigger multiple YoY degradation calculations similar to Hugo Quest et
+  al 2023. In this mode, instead of a series of 1-year duration slopes, 2-year, 3-year etc
+  slopes are also included.  calc_info['YoY_values'] returns a non-monotonic index
+  in this mode due to multiple overlapping annual slopes.  (:issue:`394`)