add changelog

docs/changes/2520.api.rst

@@ -0,0 +1,18 @@
+Unified the options for DataWriter and the data level names:
+
++-------------------------+--------------------------+
+| Old                     | New                      |
++=========================+==========================+
+| ``write_raw_waveforms`` | ``write_r0_waveforms``   |
++-------------------------+--------------------------+
+| ``write_waveforms``     | ``write_r1_waveforms``   |
++-------------------------+--------------------------+
+| ``write_images``        | ``write_dl1_images``     |
++-------------------------+--------------------------+
+| ``write_parameters``    | ``write_dl1_parameters`` |
++-------------------------+--------------------------+
+| ``write_showers``       | ``write_dl2``            |
++-------------------------+--------------------------+
+
+This changes requires that existing configuration files are updated
+if they use these parameters