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## Changes
+20220116: The tmc2130, tmc2208, tmc2209, and tmc2660 `run_current`
+calculation code has changed. For some `run_current` settings the
+drivers may now be configured differently. This new configuration
+should be more accurate, but it may invalidate previous tmc driver
+tuning.
+
20211230: Scripts to tune input shaper (`scripts/calibrate_shaper.py`
and `scripts/graph_accelerometer.py`) were migrated to use Python3
by default. As a result, users must install Python3 versions of certain